(music) A metre with two beats, each divided into three.

plural of clathrate compound

(aviation) A system of control in which a separate manipulation, as of a rudder, may be effected by either of two movements, in different directions, of a single lever, etc.

A chemical compound that is solid. / (grammar) A compound word with no spaces or hyphens in it, such as dishcloth, keyboard, or pancake.

plural of solid compound

(biology) A group of individual animals that form a distinct, individual colony

plural of compound animal

(chemistry) A cation consisting of a central positively-charged nitrogen atom with four substituents, especially organic (alkyl and aryl) groups, discounting hydrogen atoms.

plural of compound leaf

(botany) A leaf that has a fully subdivided blade, therefore having leaflets.