a quatrain having an enclosed rhyme. An example of an introverted quatrain is the In Memoriam stanza (named for the poem by Alfred, Lord Tennyson), which has an abba rhyme scheme. An introverted stanza may also be called an envelope.
INTROVERTED QUATRAIN
Meaning of INTROVERTED QUATRAIN in English
Britannica English vocabulary. Английский словарь Британика. 2012