plural of operaphile

One who enthusiastically enjoys opera.

plural of operaphobe

A person who hates opera.

(programming, informal) A binary operator that returns its first operand if that operand evaluates to true, and otherwise evaluates and returns its second operand.

(geometry, differential geometry) The differential of the Gauss map of an oriented surface at a given point on the surface.

Relating to, or characteristic of, the genre of horse opera.

Electrically (or mechanically) operated.

(rail transport) The operation of a train without a conductor or guard as a cost-cutting measure; one-man operation.

(computing) synonym of comparison operator