| ACC | accommodation; acetyl coenzyme A carboxylase; acinic cell carcinoma; acute care center; adenoid cyst... |
|---|---|
| Acc | adenoid cystic carcinoma; acceleration |
| AD | accident dispensary; acetate dialysis; active disease; acute dermatomyositis; addict, addiction; ade... |
| ACC | Adenoid Cystic Carcinoma |
|---|---|
| NDVI | Normalized Difference Vegetation Index |
| vegetation | The plant growth forms that generally occupy a given area (for example, forest, hydrophytes or chaparral). The sum total of macrophytes that occupy a given area. (09 Oct 1997) |
|---|---|
| vegetation unit | A patch, grouping or zone of plants evident in overall plant cover, which appears distinct from other such units because of the vegetation's structure and floristic composition, a given unit is typically topographically distinct and typically has a rather uniform soil, except possibly for relatively dry microsites (for example, tree bases, old tree stumps, mosquito ditch spoil piles and small earth hummocks) in an otherwise wet area or relatively wet microsites (for example small depressions) in an otherwise dry area. (09 Oct 1997) |
| hydrophytic vegetation | <botany> Plant life growing in water or on a substrate that is at least periodically deficient in oxygen as a result of excessive water content. (09 Oct 1997) |
| shrub vegetation | A community of shrubs. (09 Oct 1997) |
| adenoid | <anatomy> Lymphoid tissue which forms a prominence on the wall of the pharyngeal recess of the nasopharynx. A mass of lymphoid tissue in the upper part of throat behind the nose. (25 Jun 1999) |
| adenoid cystic carcinoma | <tumour> A histologic type of carcinoma characterised by large epithelial masses containing round, glandlike spaces or cysts which frequently contain mucus or collagen and are bordered by a few or many layers of epithelial cells without intervening stroma, forming a cribriform pattern like a slice of Swiss cheese; perineural invasion and haematogenous metastasis are common; occurs most commonly in salivary glands. Synonym: cylindromatous carcinoma. (05 Mar 2000) |
| adenoid facies | The open-mouthed and often dull appearance in children with adenoid hypertrophy, associated with a pinched nose. (05 Mar 2000) |
| adenoid squamous cell carcinoma | <tumour> A malignant neoplasm consisting chiefly of glandular epithelium (adenocarcinoma), usually well differentiated, with foci of metaplasia to squamous (or epidermoid) neoplastic cells. Synonym: adenoid squamous cell carcinoma. (05 Mar 2000) |
| adenoid tissue | A structure found within the lymphatic system that consists of lymphocytes within a network of fibres. (09 Oct 1997) |
| adenoid tumour | Adenoma, or neoplasm with glandlike spaces. (05 Mar 2000) |
| carcinoma, adenoid cystic | Carcinoma characterised by bands or cylinders of hyalinised or mucinous stroma separating or surrounded by nests or cords of small epithelial cells. When the cylinders occur within masses of epithelial cells, they give the tissue a perforated, sievelike, or cribriform appearance. Such tumours occur in the mammary glands, the mucous glands of the upper and lower respiratory tract, and the salivary glands. They are malignant but slow-growing, and tend to spread locally via the nerves. (12 Dec 1998) |
| adenoid vegetation |
Fungus-like masses of lymphoid tissue in the nasopharynx.
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