n. In ancient prosody: A third and metrically different system subjoined to two systems (the strophe and antistrophe) which are metrically identical or corresponsive, and forming with them one pericope or group of systems.n. A shorter colon, subjoined to a longer colon, and constituting one period with it; especially, such a colon, as a separate line or verse, forming either the second line of a distich or the final line of a system or stanza. As the closing verse of a system, sometimes called ephymnium.n. A poem consisting of such distichs.n. Specifically In music, a refrain or burden.