| Zeis, Eduard | <person> Dresden ophthalmologist, 1807-1868. See: Zeis' glands, zeisian sty. (05 Mar 2000) |
|---|---|
| zeisian | Relating to or described by Eduard Zeis. (05 Mar 2000) |
| zeisian sty | Inflammation of one of Zeis' glands. (05 Mar 2000) |
| Zeitgeist | In psychology, the climate of opinion, conventions of thought, covert influences, and unquestioned assumptions that are implicit in a given culture, the arts, or science at any point in time, and in which the individual operates and thus is influenced. Origin: Ger. Zeit, time, + geist, spirit (05 Mar 2000) |
| zellweger syndrome | <syndrome> A rare, autosomal recessive congenital syndrome of multiple abnormalities. Some of the principal characteristics are cerebral dysfunction, defective myelinization, craniofacial abnormalities, renal cysts, hepatomegaly, and biliary dysgenesis. Absence of liver and kidney peroxisomes is the underlying basic defect. (12 Dec 1998) |
| Zellweger, Hans | <person> U.S. Paediatrician, *1909. See: Zellweger syndrome. (05 Mar 2000) |
| zelophobia | <psychology> Morbid fear of jealousy. Origin: G. Zelos, zeal, + phobos, fear (05 Mar 2000) |
| zelotypia | Excessive zeal, carried to the point of morbidity, in the advocacy of any cause. Origin: G. Zelotypia; rivalry, envy, fr. Zelos, zeal, + typto, to strike (05 Mar 2000) |
| zemni | <zoology> The blind mole rat (Spalax typhlus), native of Eastern Europe and Asia. Its eyes and ears are rudimentary, and its fur is soft and brownish, more or less tinged with gray. It constructs extensive burrows. Source: Websters Dictionary (01 Mar 1998) |
| zenana | The part of a dwelling appropriated to women. Origin: Hind. Zenana, zanana, fr. Per. Zanana, fr. Zan woman; akin to E. Queen. Source: Websters Dictionary (01 Mar 1998) |
| zenick | <zoology> A South African burrowing mammal (Suricata tetradactyla), allied to the civets. It is grayish brown, with yellowish transverse stripes on the back. Called also suricat. Source: Websters Dictionary (01 Mar 1998) |
| zenik | <zoology> See Zenick. Source: Websters Dictionary (01 Mar 1998) |
| zenith | 1. That point in the visible celestial hemisphere which is vertical to the spectator; the point of the heavens directly overhead; opposed to nadir. "From morn To noon he fell, from noon to dewy eve, A summer's day; and with the setting sun Dropped from the zenith, like a falling star." (Milton) 2. Hence, figuratively, the point of culmination; the greatest height; the height of success or prosperity. "I find my zenith doth depend upon A most auspicious star." (Shak) "This dead of midnight is the noon of thought, And wisdom mounts her zenith with the stars." (Mrs. Barbauld) "It was during those civil troubles . . . This aspiring family reached the zenith." (Macaulay) Zenith distance. <astronomy> A telescope specially designed for determining the latitude by means of any two stars which pass the meridian about the same time, and at nearly equal distances from the zenith, but on opposite sides of it. It turns both on a vertical and a horizontal axis, is provided with a graduated vertical semicircle, and a level for setting it to a given zenith distance, and with a micrometer for measuring the difference of the zenith distances of the two stars. Origin: OE. Senyth, OF. Cenith, F. Zenith, Sp. Zenit, cenit, abbrev. Fr. Ar. Samt-urras way of the head, vertical place; samt way, path + al the + ras head. Cf. Azimuth. Source: Websters Dictionary (01 Mar 1998) |
| Zenker's degeneration | A form of severe hyaline degeneration or necrosis in skeletal muscle, occurring in severe infections. Synonym: waxy degeneration, Zenker's necrosis. (05 Mar 2000) |
| Zenker's diverticulum | <pathology> Herniation of the mucosa of the oesophagus through a defect in the wall of the oesophagus. The location is usually in the upper one-third of the oesophagus. (12 Nov 1997) |