from the GNU version of the Collaborative International Dictionary of English
- n. a family comprising the lancelets.
from The Century Dictionary and Cyclopedia
- The only known family of leptocardians or acranial vertebrates, taking name from the genus Amphioxus: a synonym of Branchiostomidæ (which see).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. lancelets
Sorry, no etymologies found.