| ashen tuber | Layer of gray matter in the hypothalamus that also forms part of the floor of the third ventricle. (12 Dec 1998) |
|---|---|
| ashen tubercle | A longitudinal prominence on the dorsolateral surface of the medulla oblongata along the lateral border of the tuberculum cuneatum; it is the surface profile of the spinal tract of trigeminal nerve, continuous caudally with the dorsolateral fasciculus (Lissauer's tract). Synonym: ashen tubercle, gray tubercle, Rolando's tubercle. (05 Mar 2000) |
| ashen wing | A prominence in the floor of the inferior fovea of the fourth ventricle that overlies the dorsal motor nucleus of the vagus. Synonym: trigonum nervi vagi, ala cinerea, ashen wing, gray wing, trigone of vagus nerve, va'gi eminentia. (05 Mar 2000) |
| Asherman | Joseph G., Czechoslovakian gynecologist, *1889. See: Asherman's syndrome. (05 Mar 2000) |
| asherman disease | <radiology> Uterine synechiae, linear, lucent defects in uterus on HSG, usually secondary to endometrial trauma (D&C, etc.) (12 Dec 1998) |
| Asherman's syndrome | <syndrome> Synechiae within the endometrial cavity, often causing amenorrhoea and infertility. (05 Mar 2000) |
| ashes | 1. The earthy or mineral particles of combustible substances remaining after combustion, as of wood or coal. 2. Specifically: The remains of the human body when burnt, or when "returned to dust" by natural decay. "Their martyred blood and ashes sow." (Milton) "The coffins were broken open. The ashes were scattered to the winds." (Macaulay) 3. The colour of ashes; deathlike paleness. "The lip of ashes, and the cheek of flame." (Byron) In dust and ashes, In sackcloth and ashes, with humble expression of grief or repentance; from the method of mourning in Eastern lands. Volcanic ashes, or Volcanic ash, the loose, earthy matter, or small fragments of stone or lava, ejected by volcanoes. Origin: OE. Asche, aske, AS. Asce, aesce, axe; akin to OHG. Asca, G. Asche, D. Asch, Icel. & Sw. Aska, Dan. Aske, Goth. Azgo. Source: Websters Dictionary (01 Mar 1998) |
| Ashman | R., 20th century U.S. Physiologist. See: Ashman's phenomenon. (05 Mar 2000) |
| Ashman's phenomenon | Aberrant ventricular conduction of a beat ending a short cycle that is preceded by a longer cycle most commonly during atrial fibrillation. (05 Mar 2000) |
| ashtoreth | The principal female divinity of the Phoenicians, as Baal was the principal male divinity. Source: Websters Dictionary (01 Mar 1998) |
| ashweed | <botany> [A corruption of ache-weed; F. Ache. So named from the likeness of its leaves to those of ache (celery). Goutweed. Source: Websters Dictionary (01 Mar 1998) |
| ashy dermatosis | Variously sized gray or red, slightly elevated macular lesions that tend to coalesce on the trunk, extremities, and face, commonly in dark-skinned Latin Americans; of unknown cause. Synonym: ashy dermatosis. (05 Mar 2000) |
| asia | The largest of the continents. It was known to the romans more specifically as what we know today as asia minor. The name comes from at least two possible sources: from the assyrian asu (to rise) or from the sanskrit usa (dawn), both with reference to its being the land of the rising sun, i.e., eastern as opposed to europe, to the west. (12 Dec 1998) |
| asia, central | The geographical area of asia comprising kazakhstan, kyrgyzstan, tajikistan, turkmenistan, and uzbekistan. The desert region of kara kum (qara qum) is largely in turkmenistan and the desert region of kyzyl kum (kizil kum or qizil qum), is in uzbekistan and kazakhstan. (12 Dec 1998) |
| asia, southeastern | The geographical area of asia comprising borneo, brunei, cambodia, indonesia, laos, malaysia, the mekong valley, myanmar (formerly burma), the philippines, singapore, thailand, and vietnam. (12 Dec 1998) |