(geometry) A circle of radius 1. / (trigonometry, the unit circle) The circle of radius 1 with centre at the origin, used in defining trigonometric functions.

plural of unit of measure

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.

(rail transport) A train consisting of one or more self-propelled cars capable of coupling with other units of the same or similar type and still being controlled from one cab.

A group of employees legally represented by a labor union for the purpose of negotiating terms and conditions of employment with an employer.

A standard unit of a currency, of which the value of coins or notes are multiples

(geometry) The hyperbola that satisfies the equation: x²-y²=1

plural of unit hyperbola

A unit of measure of egg protein quality, based on the egg's weight and the height of the albumen immediately around the yolk.