Here you will find one or more explanations in English for the word Acerous.
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AcerousAcerous Ac"er*ous, a.
Same as Acerose. Acerous
Acerous Ac"er*ous, a. [Gr. [alpha] priv. + ke`ras a horn.]
(Zo["o]l.)
(a) Destitute of tentacles, as certain mollusks.
(b) Without antenn[ae], as some insects.
Meaning of Acerous from wikipedia