Suspensorium

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Suspensorium (Anat) Anything which suspends or holds up a part: especially, the mandibular suspensorium (a series of bones, or of cartilages representing them) which connects the base of the lower jaw with the skull in most vertebrates below mammals.
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Century Dictionary and Cyclopedia
    • n suspensorium That which suspends; a suspensor or suspender. Specifically— The bone or bones forming the means by which the lower jaw is indirectly articulated with the skull in vertebrates below mammals. It is morphologically the proximal bone or proximal element of the mandibular arch, and includes the representative of the malleus of Mammalia. In Sauropsida (birds and reptiles) it is a single bone, the quadrate; in lower vertebrates it may consist of a series of bones, or be cartilaginous or ligamentous. (See cuts under quadrate, Rana, Pythonidæ, and Crotalus.) In fishes the hyomandibular bone is the principal suspensorium. (See cuts under palatoquadrate, Spatularia. and teleost.)
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Chambers's Twentieth Century Dictionary
    • n Suspensorium that which holds up a part, esp. the arrangement joining the lower jaw to the cranium in vertebrates below mammals
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Etymology

Webster's Revised Unabridged Dictionary
NL
Chambers's Twentieth Century Dictionary
L. suspendĕresub, beneath, pendēre, pensum, to hang.

Usage

In literature:

In developing Amphibia Huxley found a suspensorium of hyoid and mandibular arches similar to the hyomandibular of fish.
"Form and Function" by E. S. (Edward Stuart) Russell
The quadrate cartilage of the frog is superseded by the squamosal as the suspensorium of the lower jaw.
"Text Book of Biology, Part 1: Vertebrata" by H. G. Wells
The Moslem women make triangular aprons, worn by men over the suspensorium.
"Folkways" by William Graham Sumner
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