- bifenestrate
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adj. [L. bis, two; fenestra, window](NEMATODA: Secernentea)A term used to describe heteroderid fenestra divided by a broad vulval bridge so that it appears to be two distinct semi-fenestra; see ambifenestrate.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.