- 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.
Definition for "acera"
- A genus of mollusks, for the family members…
Sentence for "acera"