from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One that clasps.
  • n. Any of the appendages of the male of certain insects and crustaceans that are used during copulation to hold the female.
  • n. A posterior extension on each of the pelvic fins of male elasmobranch fishes that aids in the transmission of sperm during copulation.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Anything that clasps
  • n. Any of several appendages, in insects, crustacea and fish, that are used to clasp the female during copulation

from the GNU version of the Collaborative International Dictionary of English

  • n. One who, or that which, clasps, as a tendril.
  • n.
  • n. One of a pair of organs used by the male for grasping the female among many of the Crustacea.
  • n. 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 Chimæra.

from The Century Dictionary and Cyclopedia

  • n. One who or that which clasps.
  • n. The operator who makes clasps or attaches them to books or other articles.


from Wiktionary, Creative Commons Attribution/Share-Alike License

clasp +‎ -er


  • Harpes: the lateral pieces of the male genitalia in Lepidoptera, used as clasping organs: also applied to the corneous hooks often borne by these lateral pieces, which are then termed valves; see clasper: in culicids an articulated process, sometimes jointed, at the base of inner side of side-piece, below and exterior to the harpagones.

    Explanation of Terms Used in Entomology

  • The authors looked for a clasper in their placoderm fossils but couldn't find one, so they were forced to argue that it had been made of soft cartilage and had not been preserved.

    EurekAlert! - Breaking News

  • - cl. c., - its - [the] supporting cartilage [of the clasper]. co., colon. d'dnm., duodenum.

    Text Book of Biology, Part 1: Vertebrata


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