clasper(redirected from Claspered)
Also found in: Dictionary, Encyclopedia.
1. Any of the appendages of the male of certain insects and crustaceans that are used during copulation to hold the female.
2. A posterior extension on each of the pelvic fins of male cartilaginous fishes that aids in the transmission of sperm during copulation.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.