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.

Look at other dictionaries:

  • 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

  • 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

  • petrous — adjective a) Resembling rock or stone in its hardness b) Of the dense portion of the temporal bone that protects the inner ear …   Wiktionary

  • petrous — petrÉ™s adj. rocky; stony; hard …   English contemporary dictionary

  • petrous — [ pɛtrəs] adjective Anatomy another term for petrosal. Origin ME: from L. petrosus (see petrosal) …   English new terms dictionary

  • petrous — pet·rous …   English syllables

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