quadrate

(redirected from Quadrate bone)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to Quadrate bone: Hyomandibular, quadrate muscle

quadrate

 [kwod´rāt]
square or squared.

qua·drate

(kwah'drāt),
Having four equal sides; square.
[L. quadratus, square]

quadrate

(kwŏd′rāt′, -rĭt)
n.
1.
a. A square or cube.
b. An approximately square or cubic area, space, or object.
2. Zoology A bone or cartilaginous structure of the skull, joining the upper and lower jaws in birds, fish, reptiles, and amphibians.
adj.
1. Having four sides and four angles; square or rectangular.
2. Zoology Of or being the quadrate bone or cartilage.

quad·rate

(kwahd'rāt)
Having four equal sides; square.
[L. quadratus, square]

quadrate

a cartilage bone at the back end of the upper jaw in the majority of vertebrates. In mammals it becomes the INCUS of the ear, but in most other vertebrates forms the articulation of the lower jaw.
References in periodicals archive ?
Compared with the right quadrate bone, the cortex of the left quadrate bone was thicker and more hyperattenuating, consistent with sclerosis (Fig 3).
The tissue was dissected to approach the quadrate bone, avoiding the closely associated facial nerve and extensive vasculature.
Histopathologic evaluation of the quadrate bone was consistent with normal bone.
(7,9) Advanced imaging in this patient revealed an accumulation of material similar to that seen in the bulla of dogs and cats but located in the quadrate bone. Changes of the quadrate bone, the ruptured tympanic membrane, and the clinical signs of vestibular disease were supportive of otitis media and interna.