A unit of measurement which is not itself defined in terms of other units, and from which other units may be derived. / The main unit of a computer or hi-fi system.

Any simple step in a multi-step chemical engineering process; examples include distillation, evaporation, mixing, filtration, crystallization etc.

(mathematics) A vector with the length of 1.

plural of unit vector

(arithmetic) A fraction whose numerator is 1 and whose denominator is a positive integer; for example, 1/2 or 1/7.

(informal, humorous, neologism) A period of six months

plural of unit fraction

An integrated set of furniture pieces (bookshelves, cabinet etc.) standing against the wall of a room.

A military unit destined to be fielded in tactical operations

(oil industry) A unit of radioactivity used for measuring natural gamma rays in the ground.