| Jacquet's erythema | Colloquially referred to as diaper, ammonia, or napkin rash; dermatitis of thighs and buttocks resulting from exposure to urine and faeces in infants' diapers. Formerly attributed to ammonia formation; moisture, bacterial growth, and alkalinity may all induce lesions. Synonym: ammonia rash, diaper rash, Jacquet's erythema, napkin rash. (05 Mar 2000) |
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| Jacquet, Leonard | <person> French dermatologist, 1860-1914. See: Jacquet's erythema. (05 Mar 2000) |
| jactation | A throwing or tossing of the body; a shaking or agitation. Origin: L. Jactatio, fr. Jactare: af. F. Jactation. See Jactancy. Source: Websters Dictionary (01 Mar 1998) |
| jactitation | 1. Vain boasting or assertions repeated to the prejudice of another's right; false claim. 2. <medicine> A frequent tossing or moving of the body; restlessness, as in delirium. Jactitation of marriage, a giving out or boasting by a party that he or she is married to another, whereby a common reputation of their matrimony may ensue. Origin: L. Jactitare to utter in public, from jactare. See Jactancy. Source: Websters Dictionary (01 Mar 1998) |
| jaculation | The act of tossing, throwing, or hurling, as spears. "Hurled to and fro with jaculation dire." (Milton) Origin: L. Jaculatio. Source: Websters Dictionary (01 Mar 1998) |
| jaculator | 1. One who throws or casts. 2. <zoology> The archer fish (Toxotes jaculator). Origin: L. Source: Websters Dictionary (01 Mar 1998) |
| Jadassohn's nevus | Congenital papillary acanthosis of the epidermis, with hyperplasia of sebaceous glands developing at puberty and presence of apocrine glands in non-apocrine areas of the skin (commonly the scalp). A variety of epithelial tumours may arise from a nevus sebaceus in adult life, most commonly basal cell carcinoma. Synonym: Jadassohn's nevus, organoid nevus. (05 Mar 2000) |
| Jadassohn, Josef | <person> German dermatologist in Switzerland, 1863-1936; introduced the patch test for contact dermatitis. See: Jadassohn's nevus, Borst-Jadassohn type intraepidermal epithelioma, Jadassohn-Pellizzari anetoderma, Jadassohn-Tieche nevus, Franceschetti-Jadassohn syndrome, Jadassohn-Lewandowski syndrome. (05 Mar 2000) |
| Jadassohn-Lewandowski syndrome | A syndrome of ectodermal dysplasia of abnormal thickness and elevation of nail plates with palmar and plantar hyperkeratosis; the tongue is whitish and glazed owing to papillary atrophy; autosomal dominant inheritance. Synonym: Jadassohn-Lewandowski syndrome. (05 Mar 2000) |
| Jadassohn-Pellizzari anetoderma | Cutaneous atrophy preceded by erythematous or urticarial lesions of the trunk and upper portions of the extremities, and enlarging to 2-3 cm before undergoing involution. (05 Mar 2000) |
| Jadassohn-Tieche nevus | A dark blue or blue-black nevus covered by smooth skin and formed by heavily pigmented spindle-shaped or dendritic melanocytes in the reticular dermis. Synonym: Jadassohn-Tieche nevus. (05 Mar 2000) |
| jadding | <chemical> See Holing. Source: Websters Dictionary (01 Mar 1998) |
| jade | 1. To treat like a jade; to spurn. 2. To make ridiculous and contemptible. "I do now fool myself, to let imagination jade me." (Shak) 3. To exhaust by overdriving or long-continued labour of any kind; to tire or wear out by severe or tedious tasks; to harass. "The mind, once jaded by an attempt above its power, . . . Checks at any vigorous undertaking ever after." (Locke) Synonym: To fatigue, tire, weary, harass. To Jade, Fatigue, Tire, Weary. Fatigue is the generic term; tire denotes fatigue which wastes the strength; weary implies that a person is worn out by exertion; jade refers to the weariness created by a long and steady repetition of the same act or effort. A little exertion will tire a child or a weak person; a severe or protracted task wearies equally the body and the mind; the most powerful horse becomes jaded on a long journey by a continual straining of the same muscles. Wearied with labour of body or mind; tired of work, tired out by importunities; jaded by incessant attention to business. Origin: Jaded; Jading. 1. A mean or tired horse; a worthless nag. "Tired as a jade in overloaden cart." (Sir P. Sidney) 2. A disreputable or vicious woman; a wench; a quean; also, sometimes, a worthless man. "She shines the first of battered jades." (Swift) 3. A young woman; generally so called in irony or slight contempt. "A souple jade she was, and strang." (Burns) Origin: OE. Jade; cf. Prov. E. Yaud, Scot. Yade, yad, yaud, Icel. Jalda a mare. <chemical> A stone, commonly of a pale to dark green colour but sometimes whitish. It is very hard and compact, capable of fine polish, and is used for ornamental purposes and for implements, especially. In Eastern countries and among many early peoples. The general term jade includes nephrite, a compact variety of tremolite with a specific gravity of 3, and also the mineral jadeite, a silicate of alumina and soda, with a specific gravity of 3.3. The latter is the more highly prized and includes the feitsui of the Chinese. The name has also been given to other tough green minerals capable of similar use. Origin: F, fr. Sp. Jade, fr. Piedra de ijada stone of the side, fr. Ijada flank, side, pain in the side, the stone being so named because it was supposed to cure this pain. Sp. Ijada is derived fr. L. Ilia flanks. Cf. Iliac. Source: Websters Dictionary (01 Mar 1998) |
| jadeite | <chemical> See Jade, the stone. Source: Websters Dictionary (01 Mar 1998) |
| jadish | 1. Vicious; ill-tempered; resembling a jade; applied to a horse. 2. Unchaste; applied to a woman. Source: Websters Dictionary (01 Mar 1998) |