Important (Read me first!)

This post is a commentary and does not contain any copyrighted material of the reference source.

We strongly recommend accessing/buying the reference source at the same time.

Reference Source

You can understand each word more deeply by utilizing the following YouTube Posts and PDF files.
Also, see how to use Englist.me?

All Words (98 Words)

You can learn all the words from basic to advanced levels in the order they appear in the contents.
If you want learn all words quickly, you can use Quick Look Video.

Quick Look

Podcast

Advanced Words (28 Words)

If you are confident in your vocabulary, you may prefer to study with content that covers only advanced-level words.

Word List

You can quickly review the words in this content from the list below.

Word	Meaning	Advanced
bat	n: a nocturnal animal with wings that flies and feeds at night, similar to a mouse; a piece of wood with a handle used for hitting the ball in sports including baseball, cricket, and table tennis
infect	v: to affect a person, an animal, or a plant with a disease-causing organism
virus	n: a tiny infectious organic material that causes disease in people, animals, and plants
rabies	n: a viral disease that affects the nervous system of mammals, including humans; transmitted through the saliva of infected animals, most often through a bite, which can lead to paralysis, seizures, and death if left untreated
diagnose	v: to determine or distinguish the nature of a problem or an illness through a careful analysis
lethal	adj: causing or capable of causing death; extremely dangerous
mammal	n: any animal of which the female gives birth to live young, not eggs, and feeds her young on milk from her own body
faze	v: to disturb or disconcert someone, often causing them to lose their confidence or composure; to unsettle, intimidate, or fluster
infection	n: a condition in which pathogenic microorganisms or viruses have entered the body
relation	n: the way two persons or groups of people feel and act toward one another
evolve	v: to develop gradually, or to cause the development of something or someone gradually
specific	adj: clearly defined or particular to a certain thing or situation; distinct, explicit, and precise
creature	n: a living being, especially an animal
unlikely	adj: not probable or likely to happen
influenza	n: (formal for flu) a highly contagious viral disease that causes fever, severe aching, and catarrh and often occurs in epidemics
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
immune	adj: protected against a particular disease or toxin due to the presence of specific antibodies or sensitized white blood cells
defend	v: to protect someone or something from attack, criticism, danger, etc.
steady	adj: firmly fixed, supported, or balanced; not shaking or moving
stream	n: a small, narrow river; a continuous flow of something, such as liquid, gas, people, vehicles, etc.
criteria	n: (plural of criterion) standards or conditions by which something may be judged or decided
typical	adj: having the usual characteristics or traits of a specific group of things
adaptation	n: the action or process of changing to suit different conditions
pathogen	n: a bacterium, virus, or other microorganism that causes disease
controllable	adj: able to be controlled or directed
strain	n: a force or pressure that stretches or pulls something, sometimes causing damage; (biology) a group of organisms within a species that differ in trivial ways from similar groups
mammalian	adj: of or relating to mammals, a class of warm-blooded vertebrate animals that typically nurse their young and have hair or fur on their skin; characterized by mammalian qualities, such as nurturing and protective behavior
overdrive	n: a gear in a vehicle that allows the engine to operate at a higher speed than the vehicle’s speed, resulting in greater fuel efficiency and smoother driving; (verb) to drive or work too hard
horde	n: a large group of people or animals, especially one that is chaotic or uncontrolled
antibody	n: a substance produced in the blood that attacks and kills harmful bacteria, viruses, etc., to fight disease
inflame	v: to cause very strong feelings such as anger or excitement in a person or a group of people
molecule	n: a group of two or more atoms held together by attractive forces known as chemical bonds
invade	v: to enter aggressively into another’s territory by military force for conquest and occupation
progression	n: the act or process of changing to the next stage or phase or moving forward
assault	n: a violent physical attack; the crime of forcing someone to submit to sexual intercourse against their will
tissue	n: an ensemble of similar cells of the animal or plant that together carry out a specific function
damage	v: to harm or cause injury to something or someone, often resulting in decreased value or functionality; to impair or negatively affect something, such as a reputation or relationship; (noun) harm or injury that is caused to a person, thing, or entity
virulent	adj: extremely harmful or poisonous, especially in a physical or biological sense; highly infectious or contagious; intensely bitter or hostile
vulnerable	adj: capable of being hurt or influenced physically or mentally
evolutionary	adj: relating to or denoting how living things develop or change from earlier forms
millennium	n: a span of 1000 years, or the 1000th anniversary (plural: millennia)
adapt	v: to make fit for or change to suit a new purpose or environment
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
trait	n: a particular feature of your nature
flee	v: to leave by running away, especially out of fear or danger
intensive	adj: involving a lot of work or activity in a short time
process	n: a series of actions or operations performed to achieve a particular outcome or goal; a systematic procedure or approach used to accomplish a specific task or objective; a method of treating milk to make it suitable for consumption or use in other dairy products
temperature	n: the degree of hotness or coldness of a thing or place
metabolism	n: the set of chemical reactions in cells or organisms that are necessary for life-sustaining
react	v: to take action in response to something
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
fragment	n: a small piece or part broken off or detached
loose	adj: not securely fixed or fastened in place or able to be detached or separated from something
dampen	v: to make something wet or moist; to reduce the intensity or impact of something, such as a feeling, sound, or movement
dam	n: a wall constructed over a river to block the flow of water, mainly used to generate energy
associate	v: to mentally connect someone or something with someone or something else
deploy	v: to move troops or weapons into a position or military action; to bring into something in an effective way
absent	adj: not present in a particular place at a particular time
genome	n: the complete set or sequence of genes of a human, animal, plant, or other living things
coexist	v: to live or exist together at the same time in the same place
impressive	adj: arousing admiration due to size, quality, or skill
negative	adj: having the quality of something bad or harmful; expressing refusal
consequence	n: the outcome of a particular action or event, especially relative to an individual
accord	n: an official agreement or treaty between two organizations, countries, etc.; (verb) allow to have
efficient	adj: performing at the highest level of productivity with the least wasted effort or resources; capable of achieving maximum output with minimum wasted effort, time, or materials
counteract	v: to act against something to reduce its bad or harmful effects or neutralize it
frequent	adj: happening constantly
sustain	v: to supply enough of what somebody or something needs to survive or exist; to accept as valid
contribute	v: to give something, especially money or goods, to provide or achieve something together with other people
chromosome	n: a long and string-like DNA molecule containing the part or all of the genetic material of an organism that controls what an animal or plant is like
sequence	n: a series of related events, actions, numbers, etc., which have a particular order
telomere	n: a structure that protects the terminal regions of chromosome
cousin	n: the child of your aunt or uncle
grant	v: to agree to give or allow somebody
lifespan	n: the length of time for which a person, animal lives, or thing exists
invincible	adj: incapable of being conquered, defeated, or overcome; unassailable
disease	n: a disorder or illness that affects the body or mind, often characterized by specific symptoms or abnormal functioning of organs or systems
bacteria	n: single-celled or noncellular spherical or spiral or rod-shaped organisms that exist in large numbers in the air, water, and soil, and also in living and dead creatures and plants, and are often a cause of disease
unfamiliar	adj: not known or recognized; not experienced or encountered before
fungus	n: a type of organism that includes yeasts, molds, and mushrooms, which are heterotrophic, meaning they do not produce their food and must consume organic matter to survive
ravage	v: to cause damage to something badly
syndrome	n: a group of signs and symptoms that occur together and are characteristic of a particular condition or disorder
disrupt	v: to prevent or stop something, especially an event, activity, or process, from continuing in the usual way by causing a problem or disturbance
hibernation	n: a state of inactivity and metabolic depression in animals during the winter
deteriorate	v: to become worse in quality; to decline or degenerate
critic	n: someone who expresses opinions about the quality of books, music, etc.
ecosystem	n: all the plants and living creatures in an area and the way they affect each other and the environment
pollination	n: the transfer of pollen from the male reproductive organs of one flower to the female reproductive organs of another flower, resulting in fertilization and the production of seeds
disperse	v: to spread out or distribute over a broad region, or to cause something to do so
consume	v: to spend something, especially fuel, energy, or time, in a large amount
pest	n: a destructive insect or other animals that are harmful to crops, animals, or humans; someone or something that is annoying or troublesome
insect	n: any small creature that has six legs and a body divided into three sections
encroach	v: to advance beyond the usual or acceptable limit gradually and often without being noticed; to infringe upon someone’s territory, rights, privacy, etc.
preserve	v: to keep or maintain a particular quality, feature, etc., especially to prevent it from decaying, being damaged, or being destroyed
unique	adj: being the only one of its kind; unlike anything else
antiviral	adj: inhibiting or stopping the growth and reproduction of viruses; (noun) any drug that destroys viruses
viral	adj: relating to or caused by a virus
immunity	n: the ability of an organism to resist infection or disease, often due to the presence of antibodies