| excitomuscular | Causing muscular activity. (05 Mar 2000) |
|---|---|
| excitor | 1. Producing stimulation, especially producing stimulation by causing tension on muscle fibre through the nervous tissue. 2. <pharmacology> An agent or remedy that produces stimulation. Origin: L. Stimulans (18 Nov 1997) |
| excitor nerve | <anatomy, nerve> A nerve conducting impulses that stimulate to increase function. (05 Mar 2000) |
| excitoreflex nerve | <anatomy, nerve> A visceral nerve the special function of which is to cause reflex action. (05 Mar 2000) |
| excitosecretory | <physiology> Stimulating to secretion. The influence exerted by reflex action on the function of secretion, by which the various glands are excited to action. (21 Jun 2000) |
| excitotoxic | Possessing the property of exciting and then poisoning cells or tissues; examples include nerve injury produced by glutamate. Origin: excite + G. Toxikon, poison (05 Mar 2000) |
| excitotoxin | <protein> Class of substances that damage neurons through paroxysmal overactivity. They are toxins that bind to certain receptors (e.g., certain glutamate receptors) and may cause neuronal cell death. The best known excitotoxins are the excitatory amino acids, that can produce lesions in the CNS similar to those of Huntingdon's chorea or Alzheimer's disease. Excitotoxicity is thought to contribute to neuronal cell death associated with stroke. (18 Nov 1997) |
| excitovascular | Increasing the activity of the circulation. (05 Mar 2000) |
| exclamation point hair | <clinical sign> The type of dystrophic anagen hair found at margins of patches of alopecia areata. The bulb is absent. (21 Jun 2000) |
| exclave | An outlying, detached portion of a gland or other part, such as the thyroid or pancreas; an accessory gland. Origin: L. Ex, out, + -clave (in enclave) (05 Mar 2000) |
| exclosure | <zoology> An area from which livestock or other animals are excluded. (09 Oct 1997) |
| exclusion | 1. The act of excluding, or of shutting out, whether by thrusting out or by preventing admission; a debarring; rejection; prohibition; the state of being excluded. "His sad exclusion from the doors of bliss." (Milton) "The exclusion of the duke from the crown of England and Ireland." (Hume) 2. <physiology> The act of expelling or ejecting a foetus or an egg from the womb. 3. Thing emitted. Origin: L. Exclusio: cf. F. Exclusion. See Exclude. Source: Websters Dictionary (01 Mar 1998) |
| exclusion of pupil | The condition resulting from posterior annular synechia, in which the iris is bound down throughout the entire pupillary margin, but the pupil is not occluded. Synonym: exclusion of pupil. (05 Mar 2000) |
| exclusive | 1. Excluding or inclined to exclude others (at outsiders) from participation. 2. Single. 3. Undivided, whole. (18 Nov 1997) |
| exclusivist | One who favor or practices any from of exclusiveness or exclusivism. "The field of Greek mythology . . . The favorite sporting ground of the exclusivists of the solar theory." (Gladstone) Source: Websters Dictionary (01 Mar 1998) |