| free border of nail | The distal border of the nail that overhangs the tip of the digit. Synonym: margo liber unguis. (05 Mar 2000) |
|---|---|
| fungal nail infection | The most common fungus infection of the nail is onychomycosis. Onychomycosis makes the nails look white and opaque, thickened, and brittle. Older women (perhaps because oestrogen deficiency may increase the risk of infection) and men and women with diabetes or disease of the small blood vessels (peripheral vacscular disease) are at increased risk. Artificial nails (acrylic or wraps ) increase the risk because when an artificial nail is applied, the nail surface is usually abraded with an emery board damaging it, emery boards can carry infection, and water can collect under the nail creating a moist, warm environment for fungal growth. Alternative names include tinea unguium and ringworm of the nails. (12 Dec 1998) |
| african green monkey kidney cell | <cell culture> Cells taken from the kidneys of the African green monkey Cercopithecus aethiops sabaeus and used to grow certain viruses like poliovirus. (05 Feb 1998) |
| algae, green | Algae of the division chlorophyta, in which the green pigment of chlorophyll is not masked by other pigments. Classes include charophyceae, bryopsidophyceae, conjugatophyceae, oedogoniophyceae, chlorophyceae, and prasinophyceae. Common genera are acetabularia, chlamydomonas, chlorella, nitella, prototheca, scenedesmus, spirogyra, and volvox. (12 Dec 1998) |
| blue-green algae | The former name for the blue-green bacteria, now classified as Cyanobacteria. A group of prokaryotes. Synonym: Cyanobacteria. (05 May 2002) |
| blue-green bacteria | <organism> Modern term for the blue green algae, prokaryotic cells that use chlorophyll on intracytoplasmic membranes for photosynthesis. The blue green colour is due to the presence of phycobiliproteins. Found as single cells, colonies or simple filaments. In Anabaena, in which the cells are arranged as a filament, heterocysts capable of nitrogen fixation occur at regular intervals. According to the endosymbiont theory Cyanobacteria are the progenitors of chloroplasts. (18 Nov 1997) |
| blue-green bacterium | <organism> Modern term for the blue green algae, prokaryotic cells that use chlorophyll on intracytoplasmic membranes for photosynthesis. The blue green colour is due to the presence of phycobiliproteins. Found as single cells, colonies or simple filaments. In Anabaena, in which the cells are arranged as a filament, heterocysts capable of nitrogen fixation occur at regular intervals. According to the endosymbiont theory Cyanobacteria are the progenitors of chloroplasts. (18 Nov 1997) |
| brilliant green | The sulfate of di-(p-diethylamino)-triphenyl carbinolanhydride. An indicator dye that changes from yellow to green at pH 0.0 to 2.6; also used as a topical antiseptic and as a selective bacteriostatic agent in culture media. Synonym: ethyl green. (05 Mar 2000) |
| brilliant green salt agar | A highly selective culture medium consisting of agar with peptone, lactose, sodium taurocholate, brilliant green, and picric acid solution used in the primary isolation of enteric pathogens such as Salmonella species. (05 Mar 2000) |
| bromcresol green | <chemical> An indicator and reagent. It has been used in serum albumin determinations and as a pH indicator. Pharmacological action: indicators and reagents. Chemical name: Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromo-3-methyl-, S,S-dioxide (12 Dec 1998) |
| bromocresol green | Tetrabromo-m-cresolsulfonphthalein;an indicator dye changing from yellow to blue at pH 4.7; used to track DNA in agarose electrophoresis, and in a dye-binding method for analysis of serum albumin. (05 Mar 2000) |
| malachite green | Tetramethyl-di-p-aminotriphenylcarbinol;a dye that has been used as a wound antiseptic, as a treatment of mycotic skin infections, and in biological staining of tissues and bacteria. Origin: G. Malache, a mallow (05 Mar 2000) |
| Paris green | Cupric acetoarsenite, used as an insecticide and as a pigment. (05 Mar 2000) |
| green | 1. Having the colour of grass when fresh and growing; resembling that colour of the solar spectrum which is between the yellow and the blue; verdant; emerald. 2. Having a sickly colour; wan. "To look so green and pale." (Shak) 3. Full of life aud vigor; fresh and vigorous; new; recent; as, a green manhood; a green wound. "As valid against such an old and beneficent government as against . . . The greenest usurpation." (Burke) 4. Not ripe; immature; not fully grown or ripened; as, green fruit, corn, vegetables, etc. 5. Not roasted; half raw. "We say the meat is green when half roasted." (L. Watts) 6. Immature in age or experience; young; raw; not trained; awkward; as, green in years or judgment. "I might be angry with the officious zeal which supposes that its green conceptions can instruct my gray hairs." (Sir W. Scott) 7. Not seasoned; not dry; containing its natural juices; as, green wood, timber, etc. <botany> Green brier, a common European woodpecker (Picus viridis); called also yaffle. Origin: OE. Grene, AS. Gr?ne; akin to D. Groen, OS. Gr?ni, OHG. Gruoni, G. Gr?n, Dan. & Sw. Gr?n, Icel. Gr?nn; fr. The root of E. Grow. See Grow. 1. The colour of growing plants; the colour of the solar spectrum intermediate between the yellow and the blue. 2. A grassy plain or plat; a piece of ground covered with verdant herbage; as, the village green. "O'er the smooth enameled green." (Milton) 3. Fresh leaves or branches of trees or other plants; wreaths; usually in the plural. "In that soft season when descending showers Call forth the greens, and wake the rising flowers." (Pope) 4. Leaves and stems of young plants, as spinach, beets, etc, which in their green state are boiled for food. 5. Any substance or pigment of a green colour. <chemistry> Alkali green, a green pigment, consisting essentially of a hydrous arsenite of copper; called also Swedish green. It may enter into various pigments called parrot green, pickel green, Brunswick green, nereid green, or emerald green. Source: Websters Dictionary (01 Mar 1998) |
| Green algae | <botany> Division of algae containing photosynthetic pigments similar to those in higher plants and having a green colour. Includes unicellular forms, filaments and leaf like thalluses (e.g. Ulva). Some members form coenobia and the Characean algae have branched filaments. (18 Nov 1997) |