| petrography | 1. The art of writing on stone. 2. The scientific description of rocks; that department of science which investigates the constitution of rocks; petrology. Origin: Petro. Source: Websters Dictionary (01 Mar 1998) |
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| petrohyoid | <anatomy> Pertaining to petrous, oe periotic, portion of the skull and the hyoid arch; as, the petrohyoid muscles of the frog. Origin: Petro + hyoid. Source: Websters Dictionary (01 Mar 1998) |
| petrolatum | <pharmacology> A semisolid unctuous substance, neutral, and without taste or odour, derived from petroleum by distilling off the lighter portions and purifying the residue. It is a yellowish, fatlike mass, transparent in thin layers, and somewhat fluorescent. It is used as a bland protective dressing, and as a substitute for fatty materials in ointments. Petrolatum is the official name for the purified product. Cosmoline and vaseline are commercial names for substances essentially the same, but differing slightly in appearance and consistency or fusibility. Source: Websters Dictionary (01 Mar 1998) |
| petroleum | Rock oil, mineral oil, or natural oil, a dark brown or greenish inflammable liquid, which, at certain points, exists in the upper strata of the earth, from whence it is pumped, or forced by pressure of the gas attending it. It consists of a complex mixture of various hydrocarbons, largely of the methane series, but may vary much in appearance, composition, and properties. It is refined by distillation, and the products include kerosene, benzine, gasoline, paraffin, etc. Petroleum spirit, a volatile liquid obtained in the distillation of crude petroleum at a temperature of 170 deg Fahr, or below. The term is rather loosely applied to a considerable range of products, including benzine and ligroin. The terms petroleum ether, and naphtha, are sometimes applied to the still more volatile products, including rhigolene, gasoline, cymogene, etc. Origin: NL, fr. L. Petra a rock + oleum oil: cf. F. Petrole. Cf. Petrify, and Oil. Source: Websters Dictionary (01 Mar 1998) |
| petroleum ether | petroleum benzin |
| petroleum jelly | <pharmacology> A semisolid unctuous substance, neutral, and without taste or odour, derived from petroleum by distilling off the lighter portions and purifying the residue. It is a yellowish, fatlike mass, transparent in thin layers, and somewhat fluorescent. It is used as a bland protective dressing, and as a substitute for fatty materials in ointments. Petrolatum is the official name for the purified product. Cosmoline and vaseline are commercial names for substances essentially the same, but differing slightly in appearance and consistency or fusibility. Source: Websters Dictionary (01 Mar 1998) |
| petroline | <chemistry> A paraffin obtained from petroleum from Rangoon in India, and practically identical with ordinary paraffin. Source: Websters Dictionary (01 Mar 1998) |
| petrological | Of or pertaining to petrology. Source: Websters Dictionary (01 Mar 1998) |
| petrologically | According to petrology. Source: Websters Dictionary (01 Mar 1998) |
| petrologist | One who is versed in petrology. Source: Websters Dictionary (01 Mar 1998) |
| petrology | 1. <study> The department of science which is concerned with the mineralogical and chemical composition of rocks, and with their classification: lithology. 2. A treatise on petrology. (04 Mar 1998) |
| petromastoid | <anatomy> Of or pertaining to the petrous and mastoid parts of the temporal bone, periotic. Origin: Petro + mastoid. Source: Websters Dictionary (01 Mar 1998) |
| Petromyzon | Primitive marine vertebrate (Class Agnatha) with eel like body and lacking true jaws. Their relatively simple nervous system has been studied in some detail. (18 Nov 1997) |
| petromyzont | <zoology> A lamprey. Origin: Petro + Gr. To suck in. Source: Websters Dictionary (01 Mar 1998) |
| petropharyngeus | See: musculus petropharyngeus. (05 Mar 2000) |
| PET |
A technique used to measure neural activity by monitoring changes in regional blood flow. PET has good spatial resolution but relatively poor temporal resolution.
출처: www.nature.com/focus/neurodegen/glossary/
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| petit mal seizure |
Same as absence seizure.
출처: www.ehealthmd.com/library/epilepsy/EPI_glossary.ht...
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| peta- |
A prefix indicating 1015; a quadrillion.
출처: www.genpromag.com/Glossary~LETTER~P.html
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| petiole |
[pet-EE-ole] the stalk or stem by which the abdomen is attached to the thorax, most commonly seen in some wasps and ants.
출처: members.aol.com/YESedu/glossary.html
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| petit mal |
A form of epileptic fit beginning in childhood.
출처: www.bdid.com/termsp.htm
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| PET | important Russian composer whose works are noted for their expressive melodies (1840-1893) |
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| PET | Czar of Russia who introduced ideas from western Europe to reform the government and extended his territories in the Baltic and founded St. Petersburg (1682-1725) |
| PET | any of several lymph nodes in the walls of the intestines near the junction of the ileum and colon |
| PET | an annual contribution made by Roman Catholics to support the Papal see |
| PET | a city in the European part of Russia |
| PET | the final campaign of the American Civil War (1864-65) |
| PET | the final campaign of the American Civil War (1864-65) |
| PET | food prepared for pets |
| PET | the slender stem that supports the blade of a leaf |
| PET | lower middle class (shopkeepers and clerical staff etc.) |
| PET | a member of the lower middle class |
| PET | breakfast usually including a roll and coffee or tea |