| headdress | 1. A covering or ornament for the head; a headtire. "Among birds the males very often appear in a most beautiful headdress, whether it be a crest, a comb, a tuft of feathers, or a natural little plume." (Addison) 2. A manner of dressing the hair or of adorning it, whether with or without a veil, ribbons, combs, etc. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| header | A pipe from which two or more tributary pipes run. (05 Dec 1998) |
| headfish | <zoology> The sunfish (Mola). Source: Websters Dictionary (01 Mar 1998) |
| headgear | A removable extraoral appliance used as a source of traction to apply force to the teeth and jaws. (05 Mar 2000) |
| headgut | <anatomy, gastroenterology> The anterior part of the alimentary canal, from the mouth to the intestine, or to the entrance of the bile duct. (06 Mar 1998) |
| heading | 1. The act or state of one who, or that which, heads; formation of a head. 2. That which stands at the head; title; as, the heading of a paper. 3. Material for the heads of casks, barrels, etc. 4. <chemical> A gallery, drift, or adit in a mine; also, the end of a drift or gallery; the vein above a drift. 5. The extension of a line ruffling above the line of stitch. 6. That end of a stone or brick which is presented outward. Heading course A joint between two roussoirs in the same course. Source: Websters Dictionary (01 Mar 1998) |
| headmould shot | <medicine> An old name for the condition of the skull, in which the bones ride, or are shot, over each other at the sutures. Source: Websters Dictionary (01 Mar 1998) |
| headwaters | Headwaters means non-tidal rivers, streams, and their lakes and impoundments, including adjacent wetlands, that are part of a surface tributary system to an interstate or navigable water of the U.S. Upstream of the point on the river or stream at which the average annual flow is less than five cubic feet per second. The Corps of Engineers may estimate this point from available data by using the mean annual area precipitation, area drainage basin maps, and the average runoff coefficient, or by similar means. For streams that are dry for long periods of the year, the Corps may establish the point where headwaters begin as that point on the stream where a flow of five cubic feet per second is equaled or exceeded 50% of the time. (09 Oct 1997) |
| Heaf test | <investigation> A commonly used tuberculin test in which tuberculin is injected intradermally with a multiple puncture apparatus. A positive reaction indicates the presence of T-cell reactivity to mycobacterial products. (18 Nov 1997) |
| heal | 1. To make hale, sound, or whole; to cure of a disease, wound, or other derangement; to restore to soundness or health. "Speak the word only, and my servant shall be healed." (Matt. Viii. 8) 2. To remove or subdue; to cause to pass away; to cure; said of a disease or a wound. "I will heal their backsliding." (Hos. Xiv. 4) 3. To restore to original purity or integrity. "Thus saith the Lord, I have healed these waters." (2 Kings II. 21) 4. To reconcile, as a breach or difference; to make whole; to free from guilt; as, to heal dissensions. Origin: OE. Helen, haelen, AS. Halan, fr. Hal hale, sound, whole; akin to OS. Helian, D. Heelen, G. Heilen, Goth. Hailjan. See Whole. Source: Websters Dictionary (01 Mar 1998) |
| healall | <botany> A common herb of the Mint family (Brunela vulgaris), destitute of active properties, but anciently thought a panacea. Source: Websters Dictionary (01 Mar 1998) |
| healed tuberculosis | A scar or a calcified, fibrous, or caseous nodule in the lung pleura, lymph node, or other organ, resulting from previous tuberculosis that has regressed; reactivation is possible. Synonym: arrested tuberculosis, inactive tuberculosis. (05 Mar 2000) |
| healed ulcer | An ulcer covered by epithelial regeneration, beneath which there may be scarring and absence of glands or appendages. (05 Mar 2000) |
| healer | 1. A physician; one who heals or cures. 2. One who claims to cure by prayer, mysticism, new thought, or other form of suggestion. (05 Mar 2000) |
| healing | 1. Restoring to health; promoting the closure of wounds and ulcers. 2. The process of a return to health. 3. Closing of a wound. See: union. (05 Mar 2000) |