| acanthocyte | An erythrocyte characterised by multiple spiny cytoplasmic projections, as in acanthocytosis. Synonym: acanthrocyte. Origin: acantho-+ G. Kytos, cell (05 Mar 2000) |
|---|---|
| acanthocytes | Erythrocytes with protoplasmic projections giving the cell a thorny appearance. (12 Dec 1998) |
| acanthocytosis | <haematology> A rare condition where the majority of red blood cells are acanthocytes (red blood cells with multiple spiny cytoplasmic projections), a feature of abetalipoproteinaemia. (27 Sep 1997) |
| acanthocytosis with chorea | A slowly progressive familial chorea with associated mental deterioration, diminished deep tendon reflexes, bilateral atrophy of the putamen and caudate nuclei and acanthocytosis (thorny appearance of blood erythrocytes); the disorder typically begins around late adolescence; inheritance is usually autosomal recessive. Synonym: acanthocytosis with chorea. (05 Mar 2000) |
| acanthoid | Spine-shaped. (05 Mar 2000) |
| acantholysis | Separation of the prickle cells of the stratum spinosum of the epidermis, resulting in atrophy of the prickle cell layer. It is seen in diseases such as pemphigus vulgaris and keratosis follicularis. (12 Dec 1998) |
| acanthoma | <tumour> A tumour formed by proliferation of epithelial squamous cells. See: keratoacanthoma. Origin: acantho-+ G. -oma, tumour (05 Mar 2000) |
| acanthoma adenoides cysticum | <tumour> Multiple small benign nodules, occurring mostly on the skin of the face, derived from basal cells of hair follicles enclosing small keratin cysts; frequent autosomal dominant inheritance. Synonym: acanthoma adenoides cysticum, Brooke's tumour, epithelioma adenoides cysticum, hereditary multiple trichoepithelioma. Origin: tricho-+ epithelioma (05 Mar 2000) |
| acanthoma fissuratum | A fissure bordered by acanthosis developing at a site of friction by spectacle frames, usually behind the ears. (05 Mar 2000) |
| acanthopodia | Toothlike pseudopodia observed in some amoebae, typically in members of the genus Acanthamoeba. Origin: acantho-+ G. Pous, podos, foot (05 Mar 2000) |
| acanthopodina | A suborder of ameboid protozoa. Characteristics include subpseudopodia that are more or less finely tipped, occasionally filiform, commonly furcate hyaline, and produced from a broad hyaline lobe. Cysts are usually formed and nuclear division is mesomitotic or metamitotic. (12 Dec 1998) |
| acanthopodious | <botany> Having spinous petioles. Origin: Gr. Thorn +, foot. Source: Websters Dictionary (01 Mar 1998) |
| acanthopteri | <zoology> A group of teleostean fishes having spiny fins. See Acanthopterygii. Origin: NL, from Gr. Thorn + wing, fin. Source: Websters Dictionary (01 Mar 1998) |
| acanthopterous | 1. <zoology> Spiny-winged. 2. <zoology> Acanthopterygious. Origin: Gr. Spine + wing. Source: Websters Dictionary (01 Mar 1998) |
| acanthopterygian | <zoology> Belonging to the order of fishes having spinose fins, as the perch. A spiny-finned fish. Source: Websters Dictionary (01 Mar 1998) |