- pleurotomarioid
- adjective or noun
see pleurotomaria
* * *
pleurotomarioid, a. and n. Zool.(ˌplʊərəʊtəʊˈmɛərɪɔɪd)[f. mod.L. Pleurotomāri-a (f. pleurotoma see next) + -āria (see -ary 1) + -oid.]a. adj. Resembling the genus Pleurotomaria of gastropod molluscs, having top-shaped shells with a deep cleft in the outer lip; found (living) in deep tropical seas, and (extinct) in many formations from the Silurian onward. b. n. A gastropod of the family Pleurotomariidæ.
Useful english dictionary. 2012.