trace mineral
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trace mineral — … Useful english dictionary
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 fossil classification — Trace fossils are classified in various ways for different purposes. Traces can be classified taxonomically (by morphology), ethologically (by behavior), and toponomically, that is, according to their relationship to the surrounding sedimentary… … Wikipedia
Mineral Ridge National Recreation Trail, Idaho — Trailhead Length 3.3 miles (5 km) Location Kootenai County, Idaho, United States … Wikipedia
Trace metal — Trace metals are metals in extremely small quantities, almost at the molecular level, that reside in or are present in animal and plant cells and tissue. They are a necessary part of good nutrition, although they can be toxic if ingested excess… … Wikipedia
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 heating — Electric Trace Heating, also known as Electric Heat Tracing and Electric Surface Heating, is a system used to maintain or raise the temperature of pipes and vessels. Trace heating takes the form of a electrical like heating element run in… … Wikipedia
Mineral dust — Dust Plumes off Western Africa. Mineral dust is a term used to indicate atmospheric aerosols originated from the suspension of minerals constituting the soil, being composed of various oxides and carbonates. Human activities lead to 30% of the… … Wikipedia
Trace fossil — Chirotherium footprints in a Triassic sandstone … Wikipedia
trace — {{Roman}}I.{{/Roman}} noun 1 mark/sign that shows sb/sth happened/existed ADJECTIVE ▪ archaeological, historical ▪ indelible, permanent ▪ memory (technical) VERB + TRACE … Collocations dictionary
