| Ascarops strongylina | A small bloodsucking worm found in the stomach of pigs and wild boars in many parts of the world. Larvae of this species develop in coprophagous beetles; worms adhere to the gastric mucosa of the pig, and may cause inflammation and ulceration in heavy infections. Origin: G. Askaris, an intestinal worm; strongylos, round (05 Mar 2000) |
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| ascend | To go or move upward upon or along; to climb; to mount; to go up the top of; as, to ascend a hill, a ladder, a tree, a river, a throne. Source: Websters Dictionary (01 Mar 1998) |
| ascendant | 1. Ascent; height; elevation. "Sciences that were then in their highest ascendant." (Temple) 2. <astronomy> The horoscope, or that degree of the ecliptic which rises above the horizon at the moment of one's birth; supposed to have a commanding influence on a person's life and fortune. Hence the phrases To be in the ascendant, to have commanding power or influence, and Lord of the ascendant, one who has possession of such power or influence; as, to rule, for a while, lord of the ascendant. 3. Superiority, or commanding influence; ascendency; as, one man has the ascendant over another. "Chievres had acquired over the mind of the young monarch the ascendant not only of a tutor, but of a parent." (Robertson) 4. An ancestor, or one who precedes in genealogy or degrees of kindred; a relative in the ascending line; a progenitor; opposed to descendant. Origin: F. Ascendant, L. Ascendens; p. Pr. Of ascendere. Source: Websters Dictionary (01 Mar 1998) |
| ascendens | Ascending. Going upward, ascending, toward a higher position. Origin: L. (05 Mar 2000) |
| ascendent | 1. Rising toward the zenith; above the horizon. "The constellation . . . About that time ascendant." (Browne) 2. Rising; ascending. 3. Superior; surpassing; ruling. "An ascendant spirit over him." (South) "The ascendant community obtained a surplus of wealth." (J. S. Mill) "Without some power of persuading or confuting, of defending himself against accusations, . . . No man could possibly hold an ascendent position." (Grote) Source: Websters Dictionary (01 Mar 1998) |
| ascending | Rising or curving upward. <botany> Growing erect after an oblique or semi-horizontal beginning. (09 Oct 1997) |
| ascending anterior branch | The ascending anterior branch of the superior lobar branches of the left and right pulmonary arteries. Synonym: ramus anterior ascendens. (05 Mar 2000) |
| ascending aorta | The part of the aorta prior to the aortic arch from which arise the coronary arteries. Synonym: aorta ascendens, ascending part of aorta, pars ascendens aortae. (05 Mar 2000) |
| ascending artery | <anatomy, artery> The branch of the inferior branch of the ileocolic artery that passes superiorly up the ascending colon to communicate with a branch of the right colic artery and supplying the ascending colon. Synonym: arteria ascendens. (05 Mar 2000) |
| ascending branch | A branch directed superiorly. Nomina Anatomica recognises the ascending branch of the following: 1) deep circumflex iliac artery; 2) lateral cerebral sulcus; 3) lateral circumflex femoral artery. Synonym: ramus ascendens. (05 Mar 2000) |
| ascending branch of the inferior mesenteric artery | <anatomy, artery> Branch of the left colic artery (from inferior mesenteric artery) that passes anteriorly to the left kidney into the transverse mesocolon, where it anastomoses with the middle colic artery. It thus forms an anastomosis between superior and inferior mesenteric arteries, and is a component of the marginal artery (Drummond) of the colon. Synonym: arteria ascendens, arteria intermesenterica. (05 Mar 2000) |
| ascending cervical artery | <anatomy, artery> Origin, usually a terminal branch of the thyrocervical trunk (along with interior thyroid artery); distribution, muscles of neck and spinal cord; anastomoses, branches of vertebral, occipital, ascending pharyngeal, and deep cervical. Synonym: arteria cervicalis ascendens, cervicalis ascendens. (05 Mar 2000) |
| ascending cholangitis | Low-grade bacterial infection of the biliary tract; sometimes a cause of fever of unknown origin. Synonym: ascending cholangitis. (05 Mar 2000) |
| ascending colon | <anatomy> The first part of the colon (large intestine) that starts in the right lower quadrant of the abdomen and ends at the transverse colon in the right upper quadrant of the abdomen. (27 Sep 1997) |
| ascending current | The direction of current flow in a nerve when the anode is placed peripheral to the cathode, in contrast to descending current; the convention used is that current flows from positive to negative. Synonym: centripetal current. (05 Mar 2000) |