petrous

petrous
1. Of stony hardness. 2. SYN: petrosal. [L. petrosus, fr. petra, a rock]

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pe·trous 'pe-trəs, 'pē- adj of, relating to, or constituting the exceptionally hard and dense portion of the human temporal bone that contains the internal auditory organs and is a pyramidal process wedged in at the base of the skull between the sphenoid and occipital bones with its lower half exposed on the surface of the skull and pierced by the external auditory canal

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pet·rous (petґrəs) [L. petrosus] resembling a rock; hard; stony.

Medical dictionary. 2011.

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  • Petrous — Pe trous, a. [L. petrosus, fr. petra a stone.] 1. Like stone; hard; stony; rocky; as, the petrous part of the temporal bone. Hooper. [1913 Webster] 2. (Anat.) Same as {Petrosal}. [1913 Webster] …   The Collaborative International Dictionary of English

  • petrous — 1540s, from L. petrosus “stony,” from petra “rock.” …   Etymology dictionary

  • petrous — [pe′trəs, pē′trəs] adj. [L petrosus, rocky < petra, rock < Gr] 1. of or like rock; hard; stony 2. [ML petrosus] designating or of that part of the temporal bone which surrounds and protects the internal ear …   English World dictionary

  • Petrous — Adam Petrouš Spielerinformationen Geburtstag 19. September 1977 Geburtsort Prag, Tschechoslowakei Position Verteidiger Vereine in der Jugend 1987–1996 Slavia Prag …   Deutsch Wikipedia

  • Petrouš — Adam Petrouš Spielerinformationen Geburtstag 19. September 1977 Geburtsort Prag, Tschechoslowakei Position Verteidiger Vereine in der Jugend 1987–1996 Slavia Prag …   Deutsch Wikipedia

  • Petrous portion — can refer to: * Petrous portion of the temporal bone * Petrous portion of the internal carotid artery …   Wikipedia

  • petrous ganglion — n INFERIOR GANGLION (1) …   Medical dictionary

  • Petrous portion of the internal carotid artery — Infobox Artery Name = Petrous portion of the internal carotid artery Latin = pars petrosa arteriae carotidis internae GraySubject = 146 GrayPage = 567 Caption = Auditory tube, laid open by a cut in its long axis. Caption2 = BranchFrom = internal… …   Wikipedia

  • Petrous part of the temporal bone — Infobox Bone Name = Petrous portion of the temporal bone Latin = pars petrosa ossis temporalis GraySubject = 34 GrayPage = 142 Caption = Left temporal bone. Outer surface. Caption2 = Diagrammatic view of the fundus of the right internal acoustic… …   Wikipedia

  • petrous — adjective Etymology: Middle English, from Anglo French *petros, from Latin petrosus, from petra rock, from Greek Date: 14th century of, relating to, or constituting the exceptionally hard and dense portion of the human temporal bone that contains …   New Collegiate Dictionary

  • petrous — /pe treuhs, pee /, adj. 1. Anat. noting or pertaining to the hard dense portion of the temporal bone, containing the internal auditory organs; petrosal. 2. like stone, esp. in hardness; stony; rocky. [1350 1400; ME ( < MF petros) < L petrosus… …   Universalium

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