colourless crystalline compound. Any of several bases that are derivatives of purine; a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances.

To begin the use of a new thing or practice.

likely or prone to be affected by. conditionally upon. The person or thing that does the action of a verb. To cause to suffer or experience something.

salt or ester of phosphoric acid. Salt of phosphoric acids.

recognizably different in nature.

To hold something inside something else.

begin or be reckoned from particular point in time or space.

The way in which the parts of a system or object are arranged or organized, or a system arranged in this way. construct or arrange according to plan.

way that constitutes or serves as path.

having acquired much knowledge through study. To get knowledge or skills by study or experience.

expressive. Idea or thing represented by words or sentences. To have a particular intention or value.

assembled or made from whatever is available, and so unlikely to be of highest quality. Action of rubbing your skin when itchy. score or mark surface of something with sharp or pointed object.

compound consisting of nucleoside linked to phosphate group.

Careful plan or method for achieving a goal. Branch of military dealing with command.

(Of a person) well-known and highly respected. To make something clearly different from others.