| 释义 |
Zn
Zn the chemical symbol for (Elements & Compounds) zinc Thesaurus| Noun | 1. Zn - a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs naturally as zinc sulphide in zinc blendeatomic number 30, zincmetal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.spelter - impure zinc containing about three percent lead and other impurities (especially in the form of ingots) |
Zn
Zn, symbol for the element zinczinc,
metallic chemical element; symbol Zn; at. no. 30; at. wt. 65.38; m.p. 419.58°C;; b.p. 907°C;; sp. gr. 7.133 at 25°C;; valence +2. Zinc is a lustrous bluish-white metal. It is found in Group 12 of the periodic table.
..... Click the link for more information. .Zn
zinc [zingk] a chemical element, atomic number 30, atomic weight 65.37, symbol Zn. (See Appendix 6.) It is a trace element in the diet, a component of several enzymes, including DNA and RNA polymerases and carbonic anhydrase. It is abundant in red meat, shellfish, liver, peas, lentils, beans, and rice. A well-balanced diet assures adequate intake of zinc. Those who may suffer from zinc deficiency include persons on a strictly vegetarian diet and those who are on a high-fiber diet. In the latter case, the zinc is bound to the fiber and is eliminated in the feces without having been absorbed through the intestinal wall. Poor absorption of zinc also can occur in persons with chronic and severe bowel disease. The recommended daily intake is 12–15 mg for an adult. A severe deficiency of zinc can retard growth in children, cause a low sperm count in adult males, and retard wound healing. Signs of a deficiency include anorexia and a diminished sense of taste. An excessive intake of zinc (usually in those who work with the metal or breathe its fumes) can either cause pneumoconiosis or interfere with the body's use of copper and other trace elements, producing diarrhea, nausea, vomiting, and other signs of intestinal irritation.zinc acetate a salt used as an astringent and styptic.zinc chloride a salt used as a nutritional supplement in total parenteral nutrition and applied topically as an astringent and a desensitizer for dentin.zinc oxide a topical astringent and skin protectant; also a sunscreen.zinc stearate a powder of zinc in a compound with stearic and palmitic acids; used as a water-repellent skin protectant in dermatoses.zinc sulfate a topical astringent for mucous membranes, especially those of the eye.zinc undecylenate the zinc salt of undecylenic acid; it is a topical antifungal.ZN
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| ZN➣Zinc | | ZN➣Zone | | ZN➣Zona (Portuguese: zone; postal usage) | | ZN➣Zenith | | ZN➣Ziehl-Neelsen | | ZN➣Azimuth (celestial navigation) | | ZN➣Zelda Norge (Zelda Norway) | | ZN➣Zamboanga del Norte (Philippines) | | ZN➣Zodanet (internet services business) | | ZN➣Zero Noise | | ZN➣ZiffNet | | ZN➣Zhevakin - Naumov (profile) | | ZN➣Zanzibar Nationalist Party | | ZN➣Navy Airship Training Squadron (US Navy aviation unit designation used from 1940s to 1960s) |
Zn
Synonyms for Znnoun a bluish-white lustrous metallic elementSynonymsRelated Words- metal
- metallic element
- spelter
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