quadrate


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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 ?
Skull length at dorsal midline 225 Skull length to posterior end of the quadrates 252 Maximum skull width at the posterior end of the quadrates in dorsal view 133 Skull width at the anterior orbital margin 73 Rostrum length (measured from the anterior end of the premaxilla to the anterior orbital margin) 145 Rostrum width at the first maxillary alveolus 35 Mandible length (measured from its anterior end to the posterior edge of the retroarticular process) 273 Mandibular symphysis length.
The pars intermedia has got a well developed mandibular fenestra, however, shallow in all its extension in the species analysed; and the pars caudalis supports the muscles that move the jaws, besides being the area of articulation with the quadrate bone, important structure of the mandibular kinetics
Plant and soil samples were collected at 45 sites and 96 quadrates on the Tibetan Plateau grasslands by cutting or grazing during the summer (July to August) of 2010.
Antenna black; pedicel with a circle of black apical setulae; first flagellomere short, somewhat quadrate, 1.1 x longer than wide; arista upper apical, 5 x longer than first flagellomere, black, indistinctly pubescent.
3 (most-derived dichobunoids [dichobunine Dichobune, hyperdichobunine dichobunids; might include other dichobunids with quadrate hypoconiferous Ms] plus caenotheriids); Ms relatively selenodont, quadrate; tritubercular distal lobe with distinct metacone, metaconule, and hypocone; TV continuous; paraconule reduced/lost (OW).
Results showed the pneumatic cavity of the left quadrate bone was filled with material that was homogeneously hypointense to fat and hyperintense to muscle (Fig 1).
For the sake of simplifying: [p.sup.(B)](m, n, [u.sub.m] = const) = [p.sup.(B).sub.m,n] Transition matrix of probabilities [P.sup.(B)] of Markov process which models the buffer of the final length for one value of the parameter [u.sub.m] has the quadrate structure (13).
Each replicate consisted in a core sample of the top 20 cm of sediment, using a cylindrical corer (14 cm in diameter), within a randomly chosen 20-x-20-cm subsquare of one independently dropped quadrate. Plant matter was separated in the field from sediments with a 0.05mm mesh.
Per Quadrate Number : Per quadrate numbers were calculated by dividing number of specimen/specimens belonging to Lepidoptera with total number of quadrates per sampling from selected crops.
"Farbstudie Quadrate (Color Study of Squares)" - Wassily Kandinsky
Relevant anatomical features diagnosing this taxon as a primitive member of a subset of species within the genus Salvelinus include: a broad, dish-shaped hyomandibula; a quadrate in which the anterior and posterior borders form an acute angle; and a long, flat maxilla.
(1) In medioposition, the gallbladder is displaced medially to the base of the quadrate lobe (segment 4) but remains to the right of the round ligament.