wentletrap
Pronunciation: /ˈwɛnt(ə)ltrap/
Definition of wentletrap
noun
- a marine mollusc which has a tall spiral shell with many whorls that are ringed with oblique ridges. Also called staircase shell.
- Family Epitoniidae, class Gastropoda: numerous species, including the European common wentletrap (Clathrus clathrus)
Origin:
mid 18th century: from Dutch wenteltrap, literally 'winding stair'