Clasp"er (?), n.
1.
One who, or that which, clasps, as a tendril.
"The
claspers of vines."
Derham.
2. Zool. (a)
One of a pair of organs used by the male for grasping the female among many of the Crustacea.
(b)
One of a pair of male copulatory organs, developed on the anterior side of the ventral fins of sharks and other elasmobranchs. See Illust. of Chimaera.
© Webster 1913.