person who actively opposes or is hostile to person or thing. (Literature) someone who is an enemy or opponent.

in exact and clear way.

To divide something into smaller parts.

To find exactly where something is positioned.

Existing or happening before the present time.

involving unbreakable obligation. book covering. To cover a wound, as with a bandage.

substance which initiates physiological response when combined with receptor. Drug that can combine with a receptor on a cell to produce a physiological reaction.

Catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action.

way people or things differ. alter coat of arms.

action or process of making something active or operative.

act or means of sealing off place to prevent goods or people from entering or leaving. To block or impede the movement of people, objects.

. noradrenaline.

continuing or valid to final destination. From the beginning of something until the end. By a particular way or process; by the use of.

To stop a person expressing themselves normally.

natural understanding.