| perforator | One who, or that which, perforates; especially, a cephalotome. Origin: Cf. F. Perforateur. Source: Websters Dictionary (01 Mar 1998) |
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| perforatorium | A rod or fibrous cone located between the acrosome and the anterior pole of the nucleus in the spermatozoa of toads and birds; no corresponding structure evident in the subacrosomal space of mammalian spermatozoa. Origin: L. Per-foro, pp. -foratum, to bore, + -orium, instrumental suffix (05 Mar 2000) |