from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Shaped like a conch.
from the GNU version of the Collaborative International Dictionary of English
- adj. Shaped like one half of a bivalve shell; shell-shaped.
from The Century Dictionary and Cyclopedia
- Shell-shaped; especially, shaped like one valve of a bivalve shell; specifically, in entomology, semicircular and concavo-convex, as the tegulæ or wing-covers in most Hymenoptera. Also conchate.
Latin: conch + -form (Wiktionary)