'Perichaetous' definitions:
Definition of '
Perichaetous
'
From:
GCIDE
Perichaetous \Per`i*ch[ae]"tous\, a. [See Perich[ae]tium.] (Zool.) Surrounded by set[ae]; -- said of certain earthworms (genus Perich[ae]tus). [1913 Webster]
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