Petrosal bone
Petrosal Pe*tro"sal, a. [See {Petrous}.] (Anat.) (a) Hard; stony; petrous; as, the petrosal bone; petrosal part of the temporal bone. (b) Of, pertaining to, or in the region of, the petrous, or petrosal, bone, or the corresponding part of the temporal bone. [1913 Webster]

{Petrosal bone} (Anat.), a bone corresponding to the petrous portion of the temporal bone of man; or one forming more or less of the periotic capsule. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • petrosal bone — n the petrous portion of the human temporal bone also a bone corresponding to this in a nonhuman vertebrate * * * petrous bone pars petrosa ossis temporalis …   Medical dictionary

  • petrosal bone — noun also petrosal ( s) 1. : a bone corresponding to the petrous portion of the temporal bone of man 2. : a bone forming more or less of the capsule of the internal ear and composed of one or more periotic bones …   Useful english dictionary

  • Petrosal — Pe*tro sal, a. [See {Petrous}.] (Anat.) (a) Hard; stony; petrous; as, the petrosal bone; petrosal part of the temporal bone. (b) Of, pertaining to, or in the region of, the petrous, or petrosal, bone, or the corresponding part of the temporal… …   The Collaborative International Dictionary of English

  • petrosal — [pə trō′səl] adj. [< L petrosus, rocky: see PETROUS & AL] 1. very hard or stony 2. [< ModL petrosa < ML (os) petrosus, petrosal (bone)] Anat. of or located near the petrous part of the temporal bone …   English World dictionary

  • Petrosal — Pe*tro sal, n. (Anat.) (a) A petrosal bone. (b) The auditory capsule. Owen. [1913 Webster] …   The Collaborative International Dictionary of English

  • petrosal — Relating to the petrosa. SYN: petrous (2). * * * pe·tro·sal pə trō səl adj of, relating to, or situated in the region of the petrous portion of the temporal bone or capsule of the inner ear petrosal n PETROSAL BONE * * * pe·tro·sal (pə… …   Medical dictionary

  • Petrosal nerve — (a nerve traveling through the petrous portion of the temporal bone) may refer to:*Deep petrosal nerve *Greater petrosal nerve (also known as the greater superficial petrosal nerve) *Lesser petrosal nerve (also known as the lesser superficial… …   Wikipedia

  • petrosal sinus — n either of two venous sinuses on each side of the base of the brain: a) a small superior sinus that connects the cavernous and transverse sinuses of the same side called also superior petrosal sinus b) a larger inferior sinus that is situated in …   Medical dictionary

  • petrosal nerve — n any of several small nerves passing through foramina in the petrous portion of the temporal bone: as a) DEEP PETROSAL NERVE b) GREATER PETROSAL NERVE c) LESSER PETROSAL NERVE …   Medical dictionary

  • Bone — is the substance that forms the skeleton of the body. It is composed chiefly of calcium phosphate and calcium carbonate. It also serves as a storage area for calcium, playing a large role in calcium balance in the blood. The 206 bones in the body …   Medical dictionary

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