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1 definition found

From: Webster's Revised Unabridged Dictionary (1913)

 Der·o·tre·ma·ta n. pl.  Zool. The tribe of aquatic Amphibia which includes Amphiuma, Menopoma, etc. They have permanent gill openings, but no external gills; -- called also Cryptobranchiata. [Written also Derotrema.]
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