Difficult situation preventing something happening.

To cause a change in something else.

To put something in a new place.

Needed or required; unavoidable. basic requirements of life.

Illness when the body is not functioning well. disrupt functioning or arrangement of.

physical or mental feature which is regarded as indicating condition of disease. Signs that suggests that there are problems.

Amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin.

relating to intellect. intellectual person. a person who is well educated and enjoys activities in which they have to think seriously about things.

To keep something from spreading.

chemical substance which is released at end of nerve fibre by arrival of nerve impulse and, by diffusing across synapse or junction. Chemical substances, such as acetylcholine or dopamine, that transmits nerve impulses across a synapse.

A new event related to a previous event.

Different, better or greater than normal. Heavily discounted sales item.

person or thing that transports something. Vehicles used for moving other vehicles.

make smaller or less in amount or size.

amino acid widely distributed in plant proteins.