(chiefly in the plural) Any of the three rules for drama derived from Aristotle's Poetics: unity of action (a play should have one action that it follows, with minimal subplots), unity of time (the action should occur over a period of no more than 24 hours), and unity of place (a play should exist in a single physical space and should not attempt to compress geography, nor should the stage represent more than one place).

plural of classical music

Misspelling of classical antiquity.

(music) the musical period of time following the Baroque period and preceding the Romantic period, spanning c.1750-c.1820.

(logic) A kind of logic based on the principles that each proposition has a truth value of either "true" or "false", but not both, and that if a proposition were to be both true and false or neither true nor false then a result would be that all propositions would be both true and false.

An extinct language of the Northwest branch of the Semitic language family.

A radio programming format that includes hard rock music from the mid-1960s through 1980 or later.

plural of classical planet

(astrology, astronomy) The seven non-fixed astronomical objects in the sky visible to the naked eye that where known in Ancient history

A register of the Azerbaijani language, characterized by extensive lexical and grammatical borrowing from Persian, used for literary and especially poetic purposes during the classical period of Azerbaijani literature, approximately from 16th to early 20th century.