Spenserian sonnet

Wiktionary

1. n. A sonnet comprising of three quatrains with the latter rhyme part being carried over from one quatrain to the next, and a concluding couplet, therefore comprising a rhyme scheme of abab bcbc cdcd ee.

WordNet 3.0

1. n. a sonnet consisting of three quatrains and a concluding couplet in iambic pentameter with the rhyme pattern abab bcbd cdcd ee