| nickel dermatitis | Allergic dermatitis due to contact with, or in some cases ingestion of, nickel or other metals containing nickel (e.g., stainless steel) as a diluent. (05 Mar 2000) |
|---|---|
| Raney Nickel | Proprietary name for a finely powdered nickel catalyst made from Raney alloy by dissolving out the aluminum with alkali; used in the hydrogenation of organic substances. Synonym: Raney catalyst. (05 Mar 2000) |
| NAD(P)-reducing nickel hydrogenase | <enzyme> From cyanobacterium, synechocystis; genbank x97610 Registry number: EC 1.12.1.- (26 Jun 1999) |
| nickel | 1. <chemistry> A bright silver-white metallic element. It is of the iron group, and is hard, malleable, and ductile. It occurs combined with sulphur in millerite, with arsenic in the mineral niccolite, and with arsenic and sulphur in nickel glance. Symbol Ni. Atomic weight 58.6. On account of its permanence in air and inertness to oxidation, it is used in the smaller coins, for plating iron, brass, etc, for chemical apparatus, and in certain alloys, as german silver. It is magnetic, and is very frequently accompanied by cobalt, both being found in meteoric iron. 2. A small coin made of or containing nickel; especially, a five-cent piece. Nickel silver, an alloy of nickel, copper, and zinc; usually called german silver. Synonym: argentan. Origin: G, fr. Sw. Nickel, abbrev. From Sw. Kopparnickel copper-nickel, a name given in derision, as it was thought to be a base ore of copper. The origin of the second part of the word is uncertain. Cf. Kupfer-nickel, Copper-nickel. Source: Websters Dictionary (01 Mar 1998) |
| nickel-iron hydrogenase | <enzyme> From desulfovibrio multispirans Registry number: EC 1.12.- Synonym: nife hydrogenase, co-induced hydrogenase, co-tolerant hydrogenase (26 Jun 1999) |
| nickel-iron-selenium hydrogenase | <enzyme> From desulfovibrio baculatus Registry number: EC 1.12.- Synonym: nifese hydrogenase (26 Jun 1999) |
| nickel titanium | <dentistry> An especially strong orthodontic wire which allows for rapid tooth movement. (08 Jan 1998) |
| (N,N'-propylenebis(2-pyrrolylmethyleneaminato))nickel(II) | Synonym: pbpban (26 Jun 1999) |
| actinic dermatitis | Dermatitis caused or elicited by exposure to sunlight; may be phototoxic or photoallergic, and can result from topical application, ingestion, inhalation, or injection of mediating phototoxic or photoallergic material. See: photosensitization. Synonym: actinic dermatitis, actinodermatitis. Origin: photo-+ G. Derma, skin, + -itis, inflammation (05 Mar 2000) |
| allergic contact dermatitis | A delayed type IV allergic reaction of the skin with varying degrees of erythema, oedema, and vesiculation resulting from cutaneous contact with a specific allergen. Synonym: contact allergy. (05 Mar 2000) |
| ancylostoma dermatitis | Cutaneous larva migrans caused by larvae of hookworms. Synonym: ancylostoma dermatitis, ancylostomiasis cutis, coolie itch, dew itch, ground itch, swamp itch, swimmer's itch, toe itch, water itch, water sore. (05 Mar 2000) |
| atopic dermatitis | <dermatology> A type of immune-mediated (allergic) inflammatory skin disorder that results in a itchy rash. See: atopic eczema. (27 Sep 1997) |
| berloque dermatitis | Berlock dermatitis, a type of photosensitization resulting in deep brown pigmentation on exposure to sunlight after application of bergamot oil and other essential oils in perfume. (05 Mar 2000) |
| blastomycetic dermatitis | A cutaneous form of blastomycosis. (05 Mar 2000) |
| bubble gum dermatitis | Allergic contact dermatitis developing about the lips in children who chew bubble gum; caused by plastics in the gum substance. (05 Mar 2000) |