Definition of quadrate in English:


Line breaks: quad|rate


Pronunciation: /ˈkwɒdrət
1 (also quadrate bone) Zoology (In the skull of a bird or reptile) a squarish bone with which the jaw articulates, thought to be homologous with the incus of the middle ear in mammals.
More example sentences
  • Most significantly, however, the prootic articulates with the quadrate.
  • Both the quadrate and the symplectic articulate with the articular of the lower jaw.
  • Both quadrates are preserved in articulation with the respective mandibles.
2 Anatomy another term for quadratus.


Pronunciation: /ˈkwɒdrət
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Roughly square or rectangular: a broad shell with a quadrate outline
More example sentences
  • The last preserved volution has a quadrate outline.
  • Among the common shapes are triangular, circular, rhomboidal, quadrate, trapezoidal, and elliptical.
  • It was a typically quadrate teapot with a square spout and square handle, made during the Qing Dynasty.


Pronunciation: /kwɒˈdreɪt
, ˈkwɒdreɪt
archaic Back to top  
1 [with object] Make square: the materials are there quadrated or formed into rectangular blocks
2 [no object] Conform with or correspond to something: he had to make a creed which would quadrate with his immorality
More example sentences
  • The crown of P3 is slightly larger and more nearly quadrate in occlusal view than P3 of N. serrator.


late Middle English (as an adjective): from Latin quadrat- 'made square', from the verb quadrare, from quattuor 'four'.

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