| HF | Hageman factor; haplotype frequency; hard filled [capsule]; hay fever; head of fetus; head forward; ... |
|---|---|
| HFC | hard filled capsule; high-frequency current; histamine-forming capacity |
| HH | halothane hepatitis; hard-of-hearing; healthy hemophiliac; healthy human; hiatal hernia; holistic he... |
| HOH | hard of hearing |
| HP | halogen phosphorus; handicapped person; haptoglobin; hard palate; Harvard pump; health profession(al... |
| hard sore | The primary skin lesion of syphilis which begins at the site of infection after an interval of 10-30 days as a papule or red ulcerated skin lesion. (27 Sep 1997) |
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| hard tarter | <dentistry> A calcium salt concretion which forms on your teeth. Calculus deposits form on the teeth in areas which you do not floss or brush. If these concretions are left to build up on the tooth enamel, they will irritate the gum tissue, push it away from the tooth and promote progressive bone loss. Eventually the teeth can loosen and fall out. These deposits can be removed by a dentist or a dental hygienist on an annual to biannual basis. (27 Sep 1997) |
| hard tissue | Tissue that has become mineralised, tissue having a firm intercellular substance, e.g., cartilage and bone. (05 Mar 2000) |
| hard tubercle | A tubercle lacking necrosis. (05 Mar 2000) |
| hard ulcer | <dermatology> The primary skin lesion of syphilis which begins at the site of infection after an interval of 10-30 days as a papule or red ulcerated skin lesion. (27 Sep 1997) |
| hard water | <chemistry> Hard water is water which contains minerals like calcium carbonate, magnesium carbonate, bicarbonates, sulphates, or chlorides, because it has been exposed to rocks or rocky soils. Hard water can corrode, discolour, or deposit its minerals, in and around materials such as water pipes. (09 Oct 1997) |
| alfa grass | A plant (Macrochloa tenacissima) of North Africa; also, its fibre, used in paper making. Source: Websters Dictionary (01 Mar 1998) |
| arrow grass | <botany> An herbaceous grasslike plant (Triglochin palustre, and other species) with pods opening so as to suggest barbed arrowheads. Source: Websters Dictionary (01 Mar 1998) |
| bent grass | <botany> A reedlike grass of the genus Agrostis, especially. Agrostis vulgaris, or redtop. The name is also used of many other grasses, especially in the US. (06 Aug 1998) |
| bermuda grass | <botany> A kind of grass (Cynodon Dactylon) esteemed for pasture in the Southern United States. It is a native of Southern Europe, but is now wide-spread in warm countries. Synonym: scutch grass, and in Bermuda, devil grass. Source: Websters Dictionary (01 Mar 1998) |
| blue-eyed grass | <botany> A grasslike plant (Sisyrinchium anceps), with small flowers of a delicate blue colour. Source: Websters Dictionary (01 Mar 1998) |
| blue grass | <botany> A species of grass (Poa compressa) with bluish green stems, valuable in thin gravelly soils; wire grass. Kentucky blue grass, a species of grass (Poa pratensis) which has running rootstocks and spreads rapidly. It is valuable as a pasture grass, as it endures both winter and drought better than other kinds, and is very nutritious. Source: Websters Dictionary (01 Mar 1998) |
| brome grass | <botany> Of grasses, one species of which is the chess or cheat. Origin: L. Bromos a kind of oats, Gr. Source: Websters Dictionary (01 Mar 1998) |
| bunch grass | Any of a number of perennial grasses (family Gramineae) which grow in tight clumps and regenerate each year from deep roots. (09 Oct 1997) |
| gama grass | <botany> A species of grass (Tripsacum dactyloides) tall, stout, and exceedingly productive; cultivated in the West Indies, Mexico, and the Southern States of North America as a forage grass. Synonym: sesame grass. Origin: From Gama, a cluster of the Maldive Islands. Source: Websters Dictionary (01 Mar 1998) |