pso·cid (sōsĭd, sŏsĭd)
Any of various small soft-bodied chewing insects of the order Psocoptera, which includes the booklice. The psocids are sometimes classified together with the parasitic lice in the order Psocodea.
[From New Latin Psōcidae, family name, from Psōcus, type genus, from Greek psōkhos, dust.]
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