a connection between two nerve cells

to care for and protect sb/sth while they are growing and developing

An involuntary movement, sound, or reaction is made suddenly and in a way that you cannot control.

to get back your health, strength, or energy after being ill, tired, injured, etc.

in the best possible or most effective way

a poisonous substance, especially one that is produced by bacteria in plants and animals

a cell that carries information within the brain and between the brain and other parts of the body

the mass of nerves inside the spine that connects all parts of the body to the brain

a chemical substance produced in the body or in a plant that encourages growth or influences how the cells and tissues function; an artificial substance that has similar effects

connected with mental processes of understanding

to become worse

the part of your nervous system that controls processes that are unconscious, for example the process of your heart beating

an area in the central lower part of the brain that controls body temperature, hunger, and the release of hormones

to control the speed, pressure, temperature, etc. in a machine or system

to provide information or evidence to prove that sth is true

to reduce the speed at which sth is traveling or moving

to make sb's body or mind weaker

to make it difficult for sb to do sth or for sth to happen

a channel, or means, used to pass sth on

to support what sb says by giving information or evidence that agrees with them

to show that sth is wrong or false

a particular quality in your personality

to risk harming or destroying sth/sb

based on your own ideas or opinions rather than facts

to show or prove that sth is true

a condition that makes sb/sth likely to behave in a particular way or to suffer from a particular disease

to show that an idea, belief, etc. is false; to show that sth is not as good as people think it is

to continue or maintain sth

totally different from each other

to make a part of the body function

to make a connection in your mind between one thing or person and another

An animal's prey are the other animals that it hunts and eats in order to live.

to make sth completely clean

related to the context of sth

sth that is likely to cause harm

to destroy or get rid of sth completely, especially sth bad

existing or done for a good reason, and therefore considered acceptable or correct

fair and not influenced by your own or sb else's opinions, desires, etc.

the process of creating an animal or plant in a laboratory that is an exact copy of another using the DNA of the original animal or plant

Contradictory statements, information, ideas, or beliefs disagree with each other and cannot both or all be true.

sth that seems very different from the way it really is

the quality or fact of being different from another thing

sth that exists and has a clear identity of its own

relating to genes, or to the study of genes

A hereditary disease or quality is passed from a parent to a child in their genes.

famous and admired for a special skill or achievement

an accurate copy of sth

helping to treat or cure illness

the substance that animal and plant cells are made of

to state sth as a fact but without giving proof

to think about sth carefully for a long time

an animal or human before it is born, when it is beginning to develop and grow

to get rid of sth that you no longer want or need

(of a person or remark) very direct; saying exactly what you think without trying to be polite

behaving in a dishonest way by telling lies and making people believe things that are not true

(of people or their behavior) hard and cruel; determined to get what you want and not caring if you hurt other people

making use of an opportunity, especially to get an advantage for yourself without thinking about whether your actions are right or wrong

admiring yourself too much and thinking about yourself a lot

able to understand how sb feels because you can imagine what it is like to be them

unforgiving and behaving cruelly to anyone who hurts you

being too proud of yourself and what you do

too willing to believe or accept what other people tell you and therefore easily tricked

unable to relax or express your feelings in a natural way

extreme anger

a hundred times as much or as many

the level at which one functions with ease and familiarity

to free from agitation

to be made up of

to be considered to be sth

j impossible to touch, to describe exactly, or to give an exact value

very difficult or impossible to control, manage, or solve

extremely useful

to put people or things into groups according to their qualities

to treat a person or group differently from another in an unfair way

to separate people of different races, religions, or sexes and treat them in a different way

the fact or condition of sth being extremely bad or serious

a sudden forceful expression of emotion, especially anger

happening or done for no purpose

relating to or using your senses of sight, hearing, smell, taste, or touch

to influence sb, or to control sth, in a clever or dishonest way

to show a feeling, attitude, etc.

harmful or annoying to other people, or to society in general

a mental or physical illness which prevents part of your body from working properly

a pause before doing sth, or a feeling that you should not do it, especially because you are nervous, embarrassed, or worried

a period during which a serious illness improves for a time and the patient seems to get better

the feeling of being extremely sorry for sth wrong or bad that you have done

relating to the brain

to come from different directions and meet at the same point to become one thing

to decide and state officially in court that sb is guilty of a crime

involving punishment by death

to say exactly what an illness or the cause of a problem is

to examine or think about sth carefully, in order to understand it

an activity or a practice that is not according to the usual rules, or not normal

a part of the brain located at the front of a section called the frontal lobe, which is responsible for decision making and helps regulate your emotions and behavior

when you blame or criticize sb for sth that has happened

the act of fixing or adjusting the time, amount, degree, or rate of sth

feelings of anger and hate that may result in threatening or violent behavior

near the temple(s) at the side of the head

the front end of the temporal lobe

the particular way in which sth is understood or explained

the act of linking two facts, ideas, events, etc. together

sb who has a serious and permanent mental illness that makes them behave in a violent or criminal way

characteristic, distinctive

moral conduct; virtue; or the principles relating to right and wrong or good and bad behavior

the part of your mind that tells you whether what you are doing is morally right or wrong

a guilty feeling about doing sth

expr to be unable to decide what you think about sb/sth, or whether to do sth or not

expr to ask sb who knows a lot about a subject for information or their opinion

the ability to react quickly and stay calm in a difficult or dangerous situation

expr to remember or consider

expr to think very hard

the movement of highly skilled and qualified people to a country where they can work in better conditions and earn more money

n the way you feel or think about sth at a particular time

to have a very bad memory; to forget things easily

impossible to excuse or justify, because it is so bad

to cause a particular reaction or have a particular effect

to make sb extremely angry

the reason that makes sb do sth, especially when this reason is kept hidden

to stop sth from being done or used, especially by law

relating to thoughts or feelings that you have but do not think about, or do not realize you have

very careful and with great attention to every detail

a number, amount, or situation that can change

very much respected and admired, usually because of being important

using remarks that clearly mean the opposite of what you say, in order to hurt sb's feelings or to humorously criticize sth

an amount of sth that is produced

to interfere with sth or try to change it, especially without having the right to do so

to announce sth publicly or officially, especially sth positive

able to be heard

very small in amount

(of a plan, piece of equipment, etc.) that uses new and clever ideas

showing or suggesting sth

(of a loud sound) to echo through a place

to do or make sth at the time when it is needed without already having planned it

to consider one thing to be the same as or equal to another thing

damage to sb's or sth's reputation; loss of respect or status

(of an illness or a disease) that cannot be cured and will lead to death, often slowly

characterized by extremely rapid growth or increase

If a claim or piece of news is unfounded, it is not based on fact.

to defend or keep a principle or law

the fact of being weak and easily hurt physically or emotionally

having a very severe effect, or being extremely limiting

the use of sth in a way that is wrong or harmful

a process in which the genetic material of a person, plant, or animal changes in structure when it is passed on to children, etc., causing different physical characteristics to develop; a change of this kind