| atebrine hydrochloride | An acridine derivative, C23H30ClN3O-2HCl-2H2O, used as an antimalarial that destroys the trophozoites of Plasmodium vivax and P. Falciparum, but does not affect the gametocytes, sporozoites, or exoerythrocytic stage of parasites; also used as an anthelmintic. As a dihydrochloride, it is used as a stain in cytogenetics to demonstrate Y chromatin by fluorescent microscopy. Quinacrine hydrochloride intercalates with DNA and also uncouples oxidative and photophosphorylation. Synonym: atebrine hydrochloride, mepacrine hydrochloride. (05 Mar 2000) |
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| atelectasis | <chest medicine, radiology> A term used to describe partial or complete collapse of the lung, usually due to an obstruction of a bronchus (with mucus plug, infection or cancer). Atelectasis is commonly seen immediately in the post-operative period in those who have undergone general anaesthesia. Symptoms of atelectasis include low-grade fever, dry cough, chest pains and mild shortness of breath. Mild post-operative atelectasis is treated with deep breathing exercises and respiratory therapy. Atelectasis secondary to carcinoma will often be managed using bronchoscopy. (27 Sep 1997) |
| atelectatic | Relating to atelectasis. (05 Mar 2000) |
| atelectatic rale | Transitory light crackling sound that disappears after deep breathing or coughing. (05 Mar 2000) |
| ateles | <zoology> A genus of American monkeys with prehensile tails, and having the thumb wanting or rudimentary. See Spider monkey, and Coaita. Origin: Gr. Incomplete; priv. + completion. Source: Websters Dictionary (01 Mar 1998) |
| atelia | Incomplete development of the body or any of its parts, as in infantilism and dwarfism. Synonym: atelia. Origin: G. Ateles, incomplete, + -osis, condition (05 Mar 2000) |
| ateliosis | Incomplete development of the body or any of its parts, as in infantilism and dwarfism. Synonym: atelia. Origin: G. Ateles, incomplete, + -osis, condition (05 Mar 2000) |
| ateliotic | Marked by ateliosis. (05 Mar 2000) |
| ateliotic dwarfism | A state in which the secretion of all anterior pituitary hormones is inadequate or absent; caused by a variety of disorders that result in destruction or loss of function of all or most of the anterior pituitary gland. Rare forms of PHP are inherited as autosomal recessive or as an X-linked recessive. Synonym: ateliotic dwarfism, hypophyseal cachexia, hypophysial cachexia. (05 Mar 2000) |
| atelopidtoxin | A potent poison from the skin of the golden arrow frog (Atelopus zeteki) of Central and South America. (05 Mar 2000) |
| atenolol | <chemical> 4-(2-hydroxy-3-((1-methylethyl)amino)propoxy)benzeneacetamide. A cardioselective beta-adrenergic blocker possessing properties and potency similar to propranolol, but without a negative inotropic effect. Pharmacological action: adrenergic beta-antagonists, anti-arrhythmia agents, antihypertensive agents, sympatholytics. Chemical name: Benzeneacetamide, 4-(2-hydroxy-3-((1-methylethyl)amino)propoxy)- (12 Dec 1998) |
| radi-ate-veined | <botany> Having the principal veins radiating, or diverging, from the apex of the petiole; said of such leaves as those of the grapevine, most maples, and the castor-oil plant. Source: Websters Dictionary (01 Mar 1998) |
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| -ate | 1. <suffix> As an ending of participles or participial adjectives it is equivalent to -ed; as, situate or situated; animate or animated. 2. As the ending of a verb, it means to make, to cause, to act, etc.; as, to propitiate (to make propitious); to animate (to give life to). 3. As a noun suffix, it marks the agent; as, curate, delegate. It also sometimes marks the office or dignity; as, tribunate. 4. <chemistry> It is used to denote the salts formed from those acids whose names end -ic (excepting binary or halogen acids); as, sulphate from sulphuric acid, nitrate from nitric acid, etc. It is also used in the case of certain basic salts. Origin: From the L. Suffix -atus, the past participle ending of verbs of the 1st conj. (29 Oct 1998) |