'Dextral shell' definitions:
Definition of 'Dextral shell'
From: GCIDE
- Dextral \Dex"tral\, a. [From Dexter.] Right, as opposed to sinistral, or left. [1913 Webster]
- Dextral shell (Zool.), a spiral shell the whorls of which turn from left right, or like the hands of a watch when the apex of the spire is toward the eye of the observer. [1913 Webster]