Definition of "antiphonic" []

• Having the presence of an antiphon between two choirs with a call and a response in song or in chant, usually in the form of a hymn or a psalm. (adjective)

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• "Lots of words are just as rarely used, and yet just as legitimate: consider “trichinosis”, “antediluvian”, “antiphonic”, “okapi”."
• "It was less an argument than an antiphonic contest in which only one participant, Yelland, felt genuine passion."
• "+ The Responses, more numerous in this Office, recall the most ancient form of psalmody; that of the psalm chanted by one alone and answered by the whole choir, as opposed to the antiphonic form, which consists in two choirs alternately reciting the psalms."