rhyme royal

noun Prosody.

1. a form of verse introduced into English by Chaucer, consisting of seven-line stanzas of iambic pentameter in which there are three rhymes, the first line rhyming with the third, the second with the fourth and fifth, and the sixth with the seventh.

noun

1. prosody a stanzaic form introduced into English verse by Chaucer, consisting of seven lines of iambic pentameter rhyming a b a b b c c