| petrosa | The petrous portion of the temporal bone. Origin: L. Fr. Petra, rock (05 Mar 2000) |
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| petrosal | <anatomy> Hard; stony; petrous; as, the petrosal bone; petrosal part of the temporal bone. Of, pertaining to, or in the region of, the petrous, or petrosal, bone, or the corresponding part of the temporal bone. <anatomy> Petrosal bone, a bone corresponding to the petrous portion of the temporal bone of man; or one forming more or less of the periotic capsule. See: Petrous. <anatomy> A petrosal bone. The auditory capsule. Source: Websters Dictionary (01 Mar 1998) |
| petrosal bone | The part of the temporal bone that contains the structures of the inner ear and the second part of the internal carotid artery; in antenatal life it appears as a separate ossification centre. Synonym: pars petrosa ossis temporalis, periotic bone, petrosal bone, petrous pyramid. (05 Mar 2000) |
| petrosal branch of middle meningeal artery | <anatomy, artery> Petrous branch of middle meningeal artery; first intracranial branch of middle meningeal artery; anastomosis: stylomastoid artery via hiatus of facial canal. Synonym: ramus petrosus arteriae meningeae mediae. (05 Mar 2000) |
| petrosal foramen | An occasional opening in the greater wing of the sphenoid bone, between the foramen spinosum and foramen ovale, which transmits the lesser petrosal nerve. Synonym: foramen petrosum, canaliculus innominatus, foramen of Arnold. (05 Mar 2000) |
| petrosal fossa | A small and often only faintly marked depression on the inferior surface of the petrous portion of the temporal bone, between the jugular fossa and the opening of the carotid canal; here opens the canaliculus tympanicus transmitting the tympanic nerve. Synonym: fossula petrosa, petrosal fossa, receptaculum ganglii petrosi. (05 Mar 2000) |
| petrosal fossula | A small and often only faintly marked depression on the inferior surface of the petrous portion of the temporal bone, between the jugular fossa and the opening of the carotid canal; here opens the canaliculus tympanicus transmitting the tympanic nerve. Synonym: fossula petrosa, petrosal fossa, receptaculum ganglii petrosi. (05 Mar 2000) |
| petrosal impression of the pallium | A shallow impression on the inferior surface of the cerebral hemisphere made by the superior margin of the petrous part of the temporal bone. Synonym: impressio petrosa pallii. (05 Mar 2000) |
| petrosal sinus | See: inferior petrosal sinus, superior petrosal sinus. (05 Mar 2000) |
| petrosal sinus sampling | Sampling of blood levels of the adrenocorticotropic hormone (acth) by withdrawal of blood from the inferior petrosal sinus. The inferior petrosal sinus arises from the cavernous sinus and runs to the internal jugular vein. Sampling of blood at this level is a valuable tool in the differential diagnosis of cushing disease, cushing syndrome, and other adrenocortical diseases. (12 Dec 1998) |
| petrosal vein | <anatomy, vein> A short trunk formed by the union of four or five cerebellar and pontine veins opposite the middle cerebellar peduncle; it terminates in the superior petrosal sinus. See: superior petrosal sinus, inferior petrosal sinus. Synonym: vena petrosa. (05 Mar 2000) |
| petrosalpingostaphylinus | An obsolete term for the levator veli palatini muscle. Origin: petrosa + G. Salpinx, trumpet, + staphyle, uvula (05 Mar 2000) |
| petrosilex | <chemical> Felsite. Origin: Petro + silex. Source: Websters Dictionary (01 Mar 1998) |
| petrositis | An inflammation involving the petrous portion of the temporal bone and its air cells. Synonym: petrousitis. (05 Mar 2000) |
| petrosomastoid | <anatomy> Of or pertaining to the petrous and mastoid parts of the temporal bone, periotic. Origin: Petro + mastoid. Source: Websters Dictionary (01 Mar 1998) |
| petechiae |
Small purplish red spots due to subcutaneous hemorrhages.
출처: www.bdid.com/termsp.htm
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| petiole |
a stem; the support which connects the base of the metathorax with the base of the abdomen.
출처: www.biology.lsu.edu/heydrjay/ThomasSay/terms.html
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| petiolated |
supported on a stem; (cellule) one of the cubital cellules is said to be petiolated when it is triangular, and connected by means of a nervure with the nervure of the radial cellule; this disposition more frequently occurs in the second cellule.
출처: www.biology.lsu.edu/heydrjay/ThomasSay/terms.html
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| petit mal |
A mild form of seizure, characterized by a blank stare and temporary cessation of activity.
출처: www.cnn.com/HEALTH/library/BN/00023.html
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| PET |
An imaging technique used for measuring blood flow and metabolism within body tissues, including the heart and brain.
출처: www.cnn.com/HEALTH/library/BN/00023.html
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| PET | small (individual) frosted and ornamented cake |
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| PET | a member of a petit jury |
| PET | a jury of 12 to determine the facts and decide the issue in civil or criminal proceedings |
| PET | larceny of property having a value less than some amount (the amount varies by locale) |
| PET | a seizure (or a type of epilepsy characterized by such seizures) of short duration characterized by momentary unconsciousness and local muscle spasms or twitching |
| PET | epilepsy characterized by paroxysmal attacks of brief clouding of consciousness (a possible other abnormalities) |
| PET | needlepoint done with small stitches |
| PET | a small diagonal needlepoint stitch |
| PET | a garment size for short or slender women |
| PET | very small |
| PET | lower middle class (shopkeepers and clerical staff etc.) |
| PET | soup made with a variety of vegetables |