(algebraic geometry) The direction aligned with the z-axis of a coordinate system.

(algebraic geometry) The axis on a graph of at least three dimensions that is usually drawn vertically and usually shows the range of values of a variable dependent on two other variables or the third independent variable.

(slang) An official limousine, in Australia.

(typography, Unicode) A shape variant of a Han character, encoded for historical reasons.

Alternative form of Z-boson

(physics) a fundamental particle, a gauge boson, that, together with the W-boson, mediates the weak nuclear force; it has a charge of 0

(statistics) The number of standard deviation units away from the mean a particular value of data lies.

plural of z-variant

(Britain) any of several early models of police car

(computer graphics) The elimination of certain objects from the display that should not be rendered because they are behind objects that are closer to the viewer.