naturally occurring
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naturally occurring — adjective existing by nature and without artificial aid one of the 93 naturally occurring chemical elements • Similar to: ↑present … Useful english dictionary
Naturally occurring radioactive material — Naturally Occurring Radioactive Materials (NORM) and Technologically Enhanced Naturally Occurring Radioactive Materials (TENORM) consist of materials, usually industrial wastes or by products enriched with radioactive elements found in the… … Wikipedia
Naturally occurring retirement community — A Naturally occurring retirement community or a NORC (rhymes with “fork”) is a community that was not originally designed for seniors, but that has a large proportion of residents who are older adults (at least 60 years old). These communities… … Wikipedia
Abundance of the naturally occurring rare-earth elements — ▪ Table Abundance of the naturally occurring rare earth elements (parts per million) element Earth s crust average of 20 chondritic meteorites composite of 40 North American shales western North American Precambrian granites Kilauea basalt rank*… … Universalium
Some naturally occurring monosaccharides — ▪ Table Some naturally occurring monosaccharides sugar sources L arabinose mesquite gum, wheat bran D ribose all living cells; as component of ribonucleic acid D xylose corncobs, seed hulls, straw D ribulose as an intermediate in photosynthesis 2 … Universalium
naturally-occurring sulfur — Смотри самородная сера … Энциклопедический словарь по металлургии
occurring — 1. noun The action of the verb to occur. 2. adjective That occurs in a specified manner. naturally occurring macromolecules … Wiktionary
Table of naturally occurring tryptamines — The following table lists tryptamine alkaloids found in living organisms:References … Wikipedia
native (naturally-occurring) sulfur — Смотри самородная сера … Энциклопедический словарь по металлургии
Isotopes of tungsten — Naturally occurring tungsten (W) consists of five isotopes whose half lives are so long that they can be considered stable. All can decay into isotopes of element 72 (hafnium) by alpha emission; 180W has been observed to have a half life of 1.8 + … Wikipedia
Isotopes of neodymium — Naturally occurring neodymium (Nd) is composed of 5 stable isotopes, 142Nd, 143Nd, 145Nd, 146Nd and 148Nd, with 142Nd being the most abundant (27.2% natural abundance), and 2 radioisotopes, 144Nd and 150Nd. In all, 33 radioisotopes of Neodymium… … Wikipedia
