- trace element
- trace element n a chemical element present in minute quantities esp one used by organisms and held essential to their physiology compare MICRONUTRIENT (2)
* * *an element that is required in minute concentrations for normal growth and development. Trace elements include fluorine (see fluoride), manganese, zinc, copper, iodine, cobalt, selenium, molybdenum, chromium, and silicon. They may serve as cofactor or as constituents of complex molecules (e.g. cobalt in vitamin B12).
Medical dictionary. 2011.
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trace element — trace elements 1) N COUNT A trace element is a chemical element such as iron or zinc that occurs in very small amounts in living things and is necessary for normal growth and development. 2) N COUNT A trace element is a very small amount of a… … English dictionary
trace element — trace .element n technical 1.) a chemical ↑element that your body needs a very small amount of to live 2.) a chemical ↑element that only exists in small amounts on Earth … Dictionary of contemporary English
trace element — n. 1. a chemical element, as iron, copper, zinc, etc., essential in plant and animal nutrition, but only in minute quantities 2. any element present in minute quantities in an organism, soil, water, etc … English World dictionary
trace element — ► NOUN ▪ a chemical element present or required only in minute amounts … English terms dictionary
Trace element — In analytical chemistry, a trace element is an element in a sample that has an average concentration of less than 100 parts per million measured in atomic count, or less than 100 micrograms per gram. In biochemistry, a trace element is a chemical … Wikipedia
trace element — UK / US noun [countable] Word forms trace element : singular trace element plural trace elements 1) biology a chemical element that a living thing needs in only extremely small amounts in order to grow and develop normally, for example iron or… … English dictionary
trace element — trace′ el ement n. 1) biochem. any chemical element that is required in minute quantities for physiological functioning 2) mir a substance that occurs naturally only in minute amounts in the earth s crust Also called trace′ min eral. Etymology:… … From formal English to slang
trace element — Biochem. any element that is required in minute quantities for physiological functioning. Also called trace mineral. [1935 40] * * * ▪ biology also called Micronutrient, in biology, any chemical element required by living organisms in… … Universalium
trace element — an element that is required in minute concentrations for normal growth and development. Trace elements include fluorine (see fluoride), manganese, zinc, copper, iodine, cobalt, selenium, molybdenum, chromium, and silicon. They may serve as… … The new mediacal dictionary
trace element — noun an element that occurs at very small quantities in the body but is nonetheless important for many biological processes • Hypernyms: ↑chemical element, ↑element … Useful english dictionary