Webster's Revised Unabridged Dictionary (1913)
To coat with zinc; to galvanize.
An abundant element of the magnesium-cadmium group, extracted principally from the minerals zinc blende, smithsonite, calamine, and franklinite, as an easily fusible bluish white metal, which is malleable, especially when heated. It is not easily oxidized in moist air, and hence is used for sheeting, coating galvanized iron, etc. It is used in making brass, britannia, and other alloys, and is also largely consumed in electric batteries. Symbol Zn. Atomic weight 64.9.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version
\zinc\ (z&ibreve;&nsm;k), n. [g. zink, probably akin to zinn tin: cf. f. zinc, from the german. cf. tin.] (chem.) an abundant element of the magnesium-cadmium group, extracted principally from the minerals zinc blende, smithsonite, calamine, and franklinite, as an easily fusible bluish white metal, which is malleable, especially when heated. it is not easily oxidized in moist air, and hence is used for sheeting, coating galvanized iron, etc. it is used in making brass, britannia, and other alloys, and is also largely consumed in electric batteries. symbol zn. atomic weight 64.9. [formerly written also zink.]
red oxide of zinc
ruby of zinc
oxide of zinc
butter of zinc
red zinc ore
flowers of zinc
zinc cadmium sulfide
vitriol of zinc
Chemistry of the Elements
Atomic number: 30
Atomic weight: 65.39 (2) g
Group in periodic table: 12
Period in periodic table: 4
Block in periodic table: d-block
CAS registry ID: 7440-66-6
Zinc is a bluish-white, lustrous metal. It is brittle at ambient temperatures but is malleable at 100 to 150°C. It is a reasonable conductor of electricity, and burns in air at high red heat with evolution of white clouds of the oxide.
Zinc-deficient animals require 50% more food to gain the same weight of an animal supplied with adequate amounts of zinc. Zinc is not particularly toxic and is an essential element in the growth of all animals and plants.
Plating thin layers of zinc on to iron or steel is known as galvanising and helps to protect the iron from corrosion.
General Chemistry Glossary
Element 30, atomic weight 65.37, a reactive gray metal that dissolves in acids, used to galvanize metals and in many alloys (e. g. brass and bronze).
Dictionary of Medicine (Shahram)
A mineral essential to the body. Zinc is a constituent of many enzymes that permit chemical reactions to proceed at normal rates. It is involved in the manufacture of protein (protein synthesis) and in cell division. Zinc is also a constituent of insulin and is concerned with the sense of smell. According to the National Academy of Sciences, the Recommended Dietary Allowances of zinc are 12 milligrams per day for women and 10 milligrams per day for men. Food sources of zinc include meat including liver, eggs, seafood, nuts and cereal. Deficiency of zinc is associated with short stature, anemia, increased pigmentation of skin (hyperpigmentation), enlarged liver and spleen (hepatosplenomegaly), impaired gonadal function (hypogonadism), impaired wound healing, and immune deficiency. (For a genetic disorder that impairs zinc uptake, please see Acrodermatitis enteropathica). Too much zinc can cause gastrointestinal irritation (upset stomach), interfere with copper absorption and cause copper deficiency, and (like too little zinc) cause immune deficiency. Recently, zinc has been touted as a treatment for the common cold (see the MedicineNet NEWS).