- A genus of mollusks, for the family members Bullidæ or Tornatellidæ, belonging to the tectibranchiate division of opisthobranchiate gastropods.
- Used as a plural A group of apterous pests without antennæ. Inside good sense, your message is currently only synonym of Arachnida (which see).
- A group of gastropodous mollusks without tentacles.
Sentence for "acera"
- Va a señora caminado por la…
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