| phthiriasis | <medicine> A disease (morbus pediculous) consisting in the excessive multiplication of lice on the human body. Origin: L, fr. Gr, fr. Louse. Source: Websters Dictionary (01 Mar 1998) |
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| pediculosis | <dermatology> Infestation with lice of the family Pediculidae, especially infestation with Pediculus humanus. (18 Nov 1997) |
| pediculosis capitis | The presence of lice on the scalp, seen especially in children, with nits attached to hairs. Synonym: pthiriasis capitis. (05 Mar 2000) |
| pediculosis corporis | The presence of body lice which live in the seams of clothing. Biting causes pruritus and excoriations. See: parasitic melanoderma. Synonym: pediculosis vestimenti, pediculosis vestimentorum, pthiriasis corporis. (05 Mar 2000) |
| pediculosis palpebrarum | The presence of lice in the eyelashes. (05 Mar 2000) |
| pediculosis pubis | Infestation with the pubic or crab louse, Pthirus pubis, especially in pubic hair, causing pruritus and maculae ceruleae. Synonym: pthiriasis. (05 Mar 2000) |
| pediculosis vestimentorum | The presence of body lice which live in the seams of clothing. Biting causes pruritus and excoriations. See: parasitic melanoderma. Synonym: pediculosis vestimenti, pediculosis vestimentorum, pthiriasis corporis. (05 Mar 2000) |
| abstracting and indexing | Shortening or summarizing of documents; assigning of descriptors for referencing documents. (12 Dec 1998) |
| academies and institutes | Organizations representing specialised fields which are accepted as authoritative; may be non-governmental, university or an independent research organization, e.g., national academy of sciences, brookings institution, etc. (12 Dec 1998) |
| accounts payable and receivable | Short-term debt obligations and assets occurring in the regular course of operational transactions. (12 Dec 1998) |
| aged, 80 and over | A person 80 years of age and older. (12 Dec 1998) |
| algae and fungi | Algae represent a group of spore-propagating plants, unicellular or undifferentiated into root, stem, and leaf. They include seaweed and many unicellular fresh water plants, most of which contain chlorophyll. They account for about 90% of the earth's photosynthetic activity. Fungi are eukaryotic, heterotrophic organisms that live as saprobes or parasites and include mushrooms, yeasts, smuts, molds, etc. They lack chlorophyll. (12 Dec 1998) |
| alkyl and aryl transferases | <enzyme> A somewhat heterogeneous class of enzymes that catalyze the transfer of alkyl or related groups (excluding methyl groups). Registry number: EC 2.5 (12 Dec 1998) |
| allergy and immunology | A medical specialty concerned with the hypersensitivity of the individual to foreign substances and protection from the resultant infection or disorder. (12 Dec 1998) |
| alligators and crocodiles | Large, long-tailed reptiles, including caimans, of the order loricata. (12 Dec 1998) |