| humeroulnar head of flexor digitorum superficialis muscle | <anatomy> The head of the superficial flexor of the digits that attaches to both the humerus and the ulna. Synonym: caput humeroulnare musculi flexoris digitorum superificialis. (05 Mar 2000) |
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| humeroulnar joint | The portion of the elbow joint between the trochlea of the humerus and the trochlear notch of the ulna. Synonym: articulatio humeroulnaris. (05 Mar 2000) |
| humerus | Origin: L. <anatomy> The bone of the brachium, or upper part of the arm or fore limb. The part of the limb containing the humerus; the brachium. Source: Websters Dictionary (01 Mar 1998) |
| humic | <chemistry> Pertaining to, or derived from, vegetable mold; as, humic acid. See Humin. Origin: L. Humus the earth, ground: cf. F. Humique. Source: Websters Dictionary (01 Mar 1998) |
| humic acids | <chemical> Allomelanins found in soils, coals, and peat, resulting from the decomposition of organic matter, particularly dead plants. They are a mixture of complex macromolecules having polymeric phenolic structures with the ability to chelate metals, especially iron. (merck index, 11th ed) Pharmacological action: chelating agents. Chemical name: Humic acids (12 Dec 1998) |
| humid | Containing sensible moisture; damp; moist; as, a humidair or atmosphere; somewhat wet or watery; as, humid earth; consisting of water or vapor. "Evening cloud, or humid bow." (Milton) Origin: L. Humidus, umidus, fr. Humere, umere, to be moist; akin to uvidus moist, Gr, Skr. Uksh to wet, sprinkle, and Icel. Vokr moist, and perh. To E. Ox: cf. F. Humide. Source: Websters Dictionary (01 Mar 1998) |
| humid tetter | wet tetter |
| humidifier | A machine that puts moisture in the air. (12 Dec 1998) |
| humidity | Moisture; dampness; a moderate degree of wetness, which is perceptible to the eye or touch; used especially of the atmosphere, or of anything which has absorbed moisture from the atmosphere, as clothing. In hygrometrical reports (as of the United States Signal Service) complete saturation of the air is designated by Humidity 100, and its partial saturation by smaller numbers. Origin: Cf. F. Humidite. Source: Websters Dictionary (01 Mar 1998) |
| humifuse | <botany> Spread over the surface of the ground; procumbent. Origin: L. Humus ground + fusus, p.p. Of fundere to spread. Source: Websters Dictionary (01 Mar 1998) |
| humin | <chemistry> A bitter, brownish yellow, amorphous substance, extracted from vegetable mold, and also produced by the action of acids on certain sugars and carbohydrates. Synonym: humic acid, ulmin, gein, ulmic or geic acid, etc. Origin: L. Humus the earth, ground. Source: Websters Dictionary (01 Mar 1998) |
| humiri | <botany> A fragrant balsam obtained from Brazilian trees of the genus Humirium. Origin: From native name. Source: Websters Dictionary (01 Mar 1998) |
| humite | <chemical> A mineral of a transparent vitreous brown colour, found in the ejected masses of Vesuvius. It is a silicate of iron and magnesia, containing fluorine. Origin: Named after Sir A.Hume. Source: Websters Dictionary (01 Mar 1998) |
| Hummelsheim | Eduard K.M.J., German ophthalmologist, 1868-1952. See: Hummelsheim's operation. (05 Mar 2000) |
| Hummelsheim's operation | Transplantation of a normal ocular rectus muscle, to substitute for a paralysed muscle. (05 Mar 2000) |