The extent to which a system or device is operable.

(mathematics, logic) An operation on logical values that changes true to false, and false to true.

A showing of something — such as a variable, term, or object — in terms of the specific process or set of validation tests used to determine its presence and quantity.

A terminal node in phylogenetic analysis; an organism.

(dated) A person who operates a radio transmitter on a ship or in an outpost, military unit, etc., in order to communicate over long distances.

plural of multiplicative operation

plural of operating expense

A person who accomplishes tasks with efficiency and grace, especially one with verbal skills who is persuasive in interpersonal relationships, negotiation, etc.

Misconstruction of modus operandi

Misconstruction of modus operandi