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All Words (95 Words)

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Advanced Words (35 Words)

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Word List

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Word	Meaning	Advanced
ancient	adj: relating to the long ago, particularly the historical period preceding the fall of the Western Roman Empire; very old
numerous	adj: amounting to a large indefinite number
scholar	n: professor; a person who studies a topic in considerable depth, particularly in a university
eel	n: a type of elongated, snake-like fish that lives in freshwater or saltwater and has a slimy, scaleless body and no pelvic fins
testicle	n: one of the two oval-shaped organs in men that produce sperm and testosterone; in animals, the equivalent organ responsible for producing sperm and often also regulating testosterone levels
freshwater	adj: living in, found in, or connecting with water that does not contain salt
countless	adj: too numerous to be counted or very many
dissection	n: the act or process of cutting up or dividing something to examine it
identify	v: to recognize someone or something and say or prove who or what they are
reproductive	adj: connected with the process of reproduction; relating to reproducing babies, young animals, or plants
devoid	adj: completely lacking or free from something
naturalism	n: a philosophical belief that everything, including human behavior and cognition, can be explained solely by natural causes and laws
propose	v: to make a proposal, declare a plan for something
origin	n: the first existence or beginning of something
spontaneously	adv: in a way that is natural, not planned or forced, and often sudden
emerge	v: to move out of or away from something and become visible
mud	n: a soft, wet, sticky earth or clay
argue	v: to express differing opinions or points of view, often in a heated or contentious manner; to present a case or reasoning to persuade or convince others
rub	v: to move one’s hand or an object over the surface of something with pressure
subsequent	adj: happening or occurring later or after something else
scraping	n: the act of removing a thin layer of material from a surface, often to clean or smooth it; a sound or sensation that is produced by something being removed or rubbed against another surface; (of computer technology) the automated extraction or collection of data from websites
hatch	v: to cause an egg to break to allow a young animal to come out; to produce and expand something that is in an early stage
rooftop	n: the upper surface or cover of a building’s roof, often used for recreational or other purposes
manifest	v: to show something such as feeling, attitude, quality, etc. clearly through signs or actions
gill	n: a respiratory organ of fish and some other aquatic animals that extracts dissolved oxygen from water and excretes carbon dioxide
beetle	n: an insect having a hard shell-like back covering its wings
reproduction	n: the process by which organisms create offspring; the production of something similar to an original work
slippery	adj: difficult to hold firmly or stand on because it is wet or smooth; not to be trusted
mystery	n: something difficult to understand or explain; a secret or enigmatic quality that adds to the fascination or interest of something; a genre of fiction that involves the solution of a crime or a puzzle
rethink	v: to consider again a plan, idea, etc., especially to change it
cycle	n: an interval during which a recurring sequence of events occurs; a bicycle or motorcycle
distinct	adj: noticeable from something else of a similar type
larva	n: the immature free-living form of insect or an animal, which at hatching from the egg, is fundamentally unlike its parent and must metamorphose
leptocephalus	n: a transparent and ribbon-like larval stage of some eel species, characterized by its flat and elongated body shape
minuscule	adj: extremely small; tiny
adolescent	n: a young person who is in the process of developing from a child into an adult
elver	n: a young eel, especially one that has recently migrated from the sea to a freshwater environment
radical	adj: relating to the essential aspects of anything; far beyond the norm, mainly used of opinions and actions
phase	n: any stage in a series of events, change, or development
forgiveness	n: the act of stopping feeling angry or resentful towards someone for a mistake or offense with compassion
assume	v: to think or accept something to be true without having proof of it; to take or begin to have power; to begin to exhibit a specific quality or appearance
relate	v: to establish a connection or association between two or more things; to narrate or tell about an event, experience, or relationship; to empathize or feel sympathy with someone or something
upstream	adj: in the direction against a stream’s current; (adverb) toward the source or beginning of a stream, river, or process
confuse	v: to mistake one thing for another; to make somebody hard to understand
develop	v: to grow or expand; to improve or refine through a process of progress and refinement, often to achieve greater sophistication or complexity; to elaborate or add detail to something that is in the process of being created
entirety	n: the state of being complete or whole; the total extent or scope of something
essentially	adv: relating to the essential features or concepts of anything
reproduce	v: to make a copy of something such as a picture, piece of text, music, etc.; to produce offspring through a sexual or asexual process
saltiness	n: the quality or state of being salty
triangle	n: a three-sided polygon with three angles; something that has three sides or parts
cyclone	n: a violent, rotating windstorm that forms over tropical waters and can cause extensive damage to coastal regions, also known as a hurricane or typhoon, depending on the region in which it occurs
drift	v: to move smoothly and slowly in water or air, especially as a result of outside forces, with no control over the direction
migration	n: the movement of animals to a new location, frequently as the seasons change
continent	n: one of the earth’s large landmasses; (adjective) abstaining from your feelings, especially your desire to have sex
marine	adj: relating to the sea and the creatures and plants that live there
approximately	adv: close to a specific number or time but not exactly that number or time
transform	v: to change in outward structure or looks;
transparent	adj: easy to perceive, detect, or understand; (of a material or article) permitting light to pass through freely
brackish	adj: having a slightly salty or briny taste; somewhat salty, often with a mixture of fresh and saltwater
swell	v: to become larger or more inflated; to become more intense or important
lethal	adj: causing or capable of causing death; extremely dangerous
explosion	n: a violent release induced by a chemical or nuclear reaction
kidney	n: either of a pair of small organs in the body that filter waste products, especially urea, from the blood and excrete them and water in urine
shift	n: a slight transition in position, direction, or trend
retain	v: to keep or continue to possess or maintain something
maintain	v: to continue to uphold or sustain; to keep in a particular state or condition; to assert or declare something to be true
salinity	n: the presence or amount of salt in a substance, especially in water or soil; the measure of the concentration of dissolved salts in a liquid
migrate	v: to move from one country or region to another and settle there; to move from one place to another periodically or seasonally
stream	n: a small, narrow river; a continuous flow of something, such as liquid, gas, people, vehicles, etc.
pile	n: a collection of objects positioned one on top of another; a large sum of something, such as money
obstacle	n: a thing that blocks one’s way or prevents or hinders progress
predator	n: an animal whose natural behavior is to prey on others
opaque	adj: not transparent; not allowing light to pass through; not permitting a clear view
hunt	v: to go after and try to catch wild animals to kill them for food, sport, or profit
omnivore	n: a type of animal that eats both plants and animals as part of their diet; a metaphorical term used to describe a person who has wide-ranging interests or can appreciate and enjoy a variety of things
proportion	n: a part, share, or amount of something considered in comparative relation to a whole
diet	n: the food and drink that a person, animal, or community eats and drinks regularly; a legislative assembly in certain countries, for example, Japan
roughly	adv: approximately but not precisely; with a violent manner
mysterious	adj: difficult to understand, explain, or identify; having an aura of secrecy, intrigue, or puzzlement
deduce	v: to arrive at an answer, a conclusion, or a decision by reasoning
breed	v: to keep animals for producing offspring in a regulated manner
unthinkable	adj: too unlikely or shocking to imagine or accept
survey	n: an investigation of the opinions, behavior, etc. of a particular group of people, made by asking people questions
oceanography	n: the scientific study of oceans and other bodies of saltwater, including their physical, chemical, and biological characteristics, as well as their interactions with the atmosphere and land
trawl	v: to fish by dragging a net, often along the bottom of the ocean or river; to search or examine something thoroughly, often looking for a specific item or information
increasingly	adv: more and more
observe	v: to watch or notice something carefully, often to gather information or insights; to take note of something or someone; to celebrate or commemorate a special event or occasion
flurry	n: a sudden and brief burst of activity or emotion; a light snowfall with gusty winds and swirling snowflakes; a rapid or disorganized movement of small objects, such as leaves or petals
external	adj: belonging to or situated outside of someone or something
fertilization	n: the process of joining a sperm and an egg to produce an embryo
sperm	n: the reproductive cell produced by a man or male animal
fertilize	v: to cause an egg, female animal, or plant to develop by joining sperm from the male with them; to add a natural or chemical substance to land to make plants grow well
tangle	n: a confused mass of something twisted together
seaweed	n: a plant that grows in the sea or on land very close to the sea, especially marine algae
confirm	v: to support or establish the truth or certainty of something previously believed or suspected to be the case