from the GNU version of the Collaborative International Dictionary of English
- n. A genus of marine bivalves, having a pearly interior, allied to the pearl oyster; -- so called from a supposed resemblance of the typical species to a bird.
from The Century Dictionary and Cyclopedia
- n. A little bird; hence, any ungrown bird; a nestling, fledgling, or chick.
- n. [capitalized] [NL.: in allusion to the wing-like expansion of the hinge.] In conchology, a genus of bivalve mollusks, typical of the family Aviculidœ; the wing-shells. A. hirundo is the type.
Sorry, no etymologies found.