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All Words (129 Words)

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Advanced Words (53 Words)

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Word List

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Word	Meaning	Advanced
slug	n: a common name for any terrestrial gastropod mollusk that appears to lack a shell with soft and black or brown color; a bullet, a shot of alcoholic drink
background	n: the details of a person’s social heritage, such as family, vocational or educational experience; past information that is essential to understanding a situation or problem
invertebrate	n: a class of animals that do not have a backbone; they include insects, worms, and mollusks
zoology	n: the scientific study of animals, including their classification, habits, behavior, physiology, and evolution
backbone	n: the spinal column of a vertebrate; a symbolic representation of strength and resilience
planet	n: any of the nine large celestial bodies that circle in the solar system; any celestial body that revolves around a star
insect	n: any small creature that has six legs and a body divided into three sections
clam	n: a marine mollusk that burrows and lives on sand or mud, the shell closes with viselike firmness
sponge	n: a soft material with many microscopic pores that can absorb a large amount of liquid and is used for washing and cleaning
worm	n: a long, thin creature with a soft and long cylindrical tube-like body, no limbs, and a lack of eyes
biology	n: the scientific study of life and the natural processes of living things
ultimate	adj: furthest or highest in degree or order
convert	v: to have a talk with someone; (adjective) reversed in order, relation, or action
photosynthesis	n: the process through which plants and other organisms transform light energy into chemical energy, which is then released through cellular respiration to power the organism’s activities.
capture	v: to catch a person or an animal and confine them in an area which they cannot escape
carbon	n: a chemical element that can be found in pure form as diamond or graphite, and it is also an essential part of coal and oil and is found in all plants and animals
oxide	n: a chemical compound that contains at least one oxygen atom and one other element
sunlight	n: the light emitted by the sun; the rays of the sun
oxygen	n: the chemical element with the symbol O that is present in air and water and is necessary for people, animals, and plants to live
coral	n: a rock-like substance created in the sea by groupings of specific types of small animals, commonly used in jewelry
reef	n: a long chain or range of rocks or sand near the ocean’s surface
locate	v: to specify or determine the exact position of someone or something
laboratory	n: a workplace for doing scientific research or teaching science; a lab
label	n: a small piece of paper, fabric, or other material attached to an object and giving information about it; (verb) to assign to a category
partnership	n: the state of a cooperative relationship between people or groups, especially in business
symbiosis	n: a close, prolonged association between two or more different species of organisms, typically to the advantage of all
algae	n: A simple plant that grows in or near water and lacks typical leaves and roots
zooxanthella	n: a type of single-celled algae that lives in a mutualistic association with various marine animals, particularly coral
relative	adj: considered and evaluated through comparison with something else
flatworm	n: a type of simple, soft-bodied invertebrate animal with a flat, ribbon-like shape, including tapeworms and planarians
anemone	n: a type of flowering plant that has bright, showy flowers and typically blooms in the spring; a marine creature that resembles flowers but has oral rings of tentacles
jellyfish	n: a marine creature with a soft, jelly-like body and tentacles for stinging
upside	n: the positive aspect or potential of something; the upper side of something
shallow	adj: not having much distance from the top to the bottom
mangrove	n: a tropical coastal tree or shrub that grows in saline soil and has prop roots that help to stabilize it
aquarium	n: a transparent tank of water in which fish and other water animals and plants are kept; a building containing tanks of live fish of different species, especially one that is open to the public
tentacle	n: a flexible, mobile, and long arm-like organ used for feeling and holding things, catching food, or moving
microscope	n: an instrument used to see objects or substances that are too small to be seen with the naked eye
micrograph	n: a photograph or image that has been taken through a microscope or magnifying lens, typically used for scientific or medical purposes
microscopic	adj: tiny; exceedingly precise and detail-oriented; of or used in microscopy
sphere	n: a round object or geometric shape that is three-dimensional and symmetrical around a central point; a particular aspect or scope of life or activity
dense	adj: containing a large number of people or something with little space between them
remarkable	adj: worthy of attention because unusual or special
typical	adj: having the usual characteristics or traits of a specific group of things
fantastic	adj: extremely good; excellent
primarily	adv: mainly
mollusk	n: a soft-bodied invertebrate with no internal skeleton, such as a snail, clam, or octopus
shell	n: hard outer covering or case of eggs, nuts, some seeds, and some animals
snail	n: a slow-moving mollusk with a spiral shell that it uses to protect its body
octopus	n: a sea creature with a soft round body and eight long tentacles (= long parts like arms)
squid	n: a sea creature with a long and soft body, large eyes, eight arms, and two tentacles (= long parts like arms), and that is sometimes used for food
fantastically	adv: in a manner that is extremely or unbelievably good, impressive, or bizarre; in a fanciful or imaginative way
diverse	adj: including numerous categories of individuals or entities; various
arthropod	n: a type of invertebrate animal with a segmented body, jointed limbs, and an exoskeleton, including insects, spiders, crustaceans, and centipedes
diversity	n: the quality or fact of many different types of things or people being included in something; a range of different things or people
grain	n: wheat or any other small hard seeds used as a food; a relatively small granular particle of a substance
colossal	adj: extremely large and impressive
absolutely	adv: without restriction or limitation; completely or utterly
enormous	adj: extremely large or great
giant	adj: enormous; much bigger or more important than similar items usually are
tropical	adj: originating in, located in, or characteristic of the tropics
symbiotic	adj: involving two varieties of animal or plant, each of which supplies the conditions for the other to exist
unfortunately	adv: by bad luck; unluckily
overharvested	adj: referring to a natural resource, particularly a plant or animal, that has been harvested or collected beyond its sustainable capacity
gastropod	n: a class of mollusk that typically have a coiled or spiral shell, including snails, slugs, and whelks
seashell	n: a type of shell that once housed a mollusk, typically found on beaches or in shallow water
tremendous	adj: very great in degree or extent or amount or impact; extremely good
cone	n: a geometric shape that tapers to a point at one end and has a circular base at the other end
venomous	adj: extremely poisonous or injurious; containing or producing venom; marked by deep ill will
biomedical	adj: relating to the application of the natural sciences, especially biology, and physiology, to clinical medicine and healthcare
venom	n: a toxic substance produced by an animal, typically a snake or insect, and injected into prey or an enemy by biting or stinging
scuba	n: an acronym for Self-Contained Underwater Breathing Apparatus, a device used for underwater diving
dive	v: to jump into the water with your head and arms going in first, or to move down to a deeper level underwater
evolution	n: a gradual process of transformation of living things
minus	adj: subtracting or taking away; having a value less than zero
evolutionary	adj: relating to or denoting how living things develop or change from earlier forms
unrelated	adj: having no connection; not belonging to the kinship
greatly	adv: to an extraordinary extent or degree; very much
shield	n: a protective covering or structure, especially in the past, that soldiers held in front of their bodies to protect themselves
hare	n: a fast-running mammal with long ears and a short tail that closely resembles a rabbit but is larger and has longer hind legs
pulmonate	n: a type of mollusk with a lung-like breathing organ found commonly in freshwater and terrestrial habitats
breath	n: the air that is taken into and expelled from your lungs; the process of taking into and expelling air from your lungs
displeasure	n: the state of being annoyed or unhappy with someone or something
encounter	v: to face something, particularly something unpleasant or difficult, while attempting to do something else; to meet, especially unexpectedly
weird	adj: extraordinary, unexpected, or difficult to explain
fascinating	adj: extremely interesting
nudibranch	n: a marine gastropod mollusk without a shell and with conspicuous or brightly colored gills found typically in warm seas
branch	n: a division of a tree or woody shrub that grows out from the trunk or a main stem; a division of some larger or more complex organization
gill	n: a respiratory organ of fish and some other aquatic animals that extracts dissolved oxygen from water and excretes carbon dioxide
feathery	adj: having or resembling the soft and delicate feathers of a bird, typically in texture or appearance
tuft	n: a small cluster or clump of something, typically hair, grass, or feathers, that stands upright and apart from the surrounding material
carnivore	n: an animal that primarily eats meat as opposed to plant matter
sting	v: to cause a sharp, painful sensation or injury with a poison, venom, or other substance or by a physical action such as a bite or prick
sacoglossan	n: a type of sea slug that feeds by piercing and sucking out the contents of sac-shaped algae and often has a green color resulting from photosynthetic pigments in their tissues
camouflage	n: an outward appearance that conceals the underlying essence of something; the way of concealing troops or military equipment so they cannot be seen against the surrounding environment
herbivore	n: an animal that eats only plants, such as a cow or a deer
poke	v: to push or prod with a sharp object or the finger
slurp	v: to eat, drink, or consume with a loud or messy sucking noise; to make a loud or messy sucking noise while eating, drinking, or consuming
digest	v: to transform food into absorbable substances; break down
chloroplast	n: a type of membrane-bound organelle that conducts photosynthesis in plant and algal cells.
organelle	n: a specialized subunit, usually within a cell, that has a specific function
stick	v: to put something, usually a sharp object, into something; to restrict yourself to doing or using one certain thing and not change; (noun) a thin piece of wood or other material
kleptoplasty	n: the ability of some animals to “steal” chloroplasts from other organisms and incorporate them into their bodies, allowing them to photosynthesize like plants
plasty	n: a surgical procedure that involves the shaping or molding of tissue or bone, particularly for reconstructive purposes
vary	v: to become different in terms of size, shape, etc.
cycle	n: an interval during which a recurring sequence of events occurs; a bicycle or motorcycle
digestive	adj: relating to or capable of causing or promoting digestion of food
colleague	n: one of a group of a coworker, especially in a profession or a business
nick	n: a small cut, notch, or indentation in a surface or an edge
tub	n: a large, deep, round container, typically made of metal or plastic, used for washing or soaking things, especially clothes or a person’s body
sac	n: a bag or pouch, typically made of fabric or leather, used to hold something valuable or important; a structure resembling a bag in an animal or plant
structure	n: the way of construction of something and the arrangement of its parts, or a complex thing constructed of many parts
nucleus	n: the central and most important part of something; (biology) a part of the cell containing DNA and RNA and responsible for growth and reproduction; (physics) the very dense central region of an atom
jam	n: a situation in which something becomes stuck because of a dense crowd of people, vehicles, etc.; a preserve of crushed fruit
tight	adj: fixed, fastened, or kept together firmly or closely
density	n: the quality of compactness of a substance
unravel	v: undo twisted, knitted, or woven threads by separating it
scratch	v: to cut or damage the surface of something or the skin with a sharp or pointed object
discovery	n: the act or process of finding information, a place, or an object, or learning about something that was previously not known
emerald	adj: having a deep, rich green color, like that of an emerald gemstone
lettuce	n: a leafy vegetable that is often used as a base for salads or sandwiches; it has green leaves and a mild flavor
chlorophyll	n: any of a group of green pigments found in photosynthetic organisms
chemical	adj: relating to or connected with chemistry;
exciting	adj: causing a lot of interest or excitement
cellular	adj: of or connected with the cells of animals or plants; of or connected with a mobile telephone system that uses several short-range radio stations instead of wires
molecular	adj: of or relating to molecules (= a group of two or more atoms held together by attractive forces known as chemical bonds)
biochemical	adj: relating to the chemical processes and substances that occur within living organisms
occasionally	adv: now and then; sometimes but not often
introduction	n: a preliminary explanation or remarks given before the start of a text, performance, or event; the act of bringing something new into existence or introducing something to a wider audience or new market