† microcerousadj. [compare scientific Latin microcerus (J. B. Robineau-Desvoidy 1830, in Mém. à l'Acad. Royale des Sci. de l'Inst. de France2 61)] EntomologyObsoleterare having small antennae or tentacles.Apparently only attested in dictionaries or glossaries.
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1857 R. G. MayneExpos. Lexicon Med. Sci. (1860) Microcerus, applied by Blainville to a section..of the Nereides, comprehending those which have very short tentacula: microcerous.