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 make someone known to another by name.

likely or prone to be affected by. conditionally upon. The person or thing that does the action of a verb. cause or force person or thing to undergo.

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

recognizably different in nature.

To keep something from spreading.

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. To plan, organize, or arrange the parts of something.

A path or way that you can walk.

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 intend to do something in particular.

assembled or made from whatever is available, and so unlikely to be of highest quality. Action of rubbing your skin when itchy. To rub your skin with your nails to stop an itch.

Any of various compounds consisting of a nucleoside combined with a phosphate group and forming the basic constituent of DNand RNA.

plan of action or policy designed to achieve major or overall aim. Branch of military dealing with command.

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