micromineraln.
/ˌmʌɪkrə(ʊ)ˈmɪn(ə)rəl/, /ˌmʌɪkrə(ʊ)ˈmɪn(ə)rl̩/, U.S. /ˌmaɪkroʊˈmɪn(ə)rəl/ 1. Geology. A mineral of microscopic size.
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1872 Amer. Naturalist 6 704 In the mineral kingdom, micro-chemicals precede micro-minerals.
1941 Rocks & Minerals 16 214/2 The inherent beauty of micro-minerals lies in projection of the..transparencies in full color.
1984 Philos. Trans. (Royal Soc.) A. 311 424 Micromineral separation methods have been introduced to remove some unwanted minerals from the refined kaolin.
1992 Rock & Gem Feb. 83/2 Every phase of this multiple hobby fascinates me, whether it is..viewing a micromineral or microfossil under magnification.
2. Biology and Medicine. An essential mineral nutrient required in relatively small amounts; a trace element. Cf. macromineral n.
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the world > life > biology > biological processes > nutrition, etc. > [noun] > nutrients
microelement1936
micronutrient1940
macroelement1942
macronutrient1942
micromineral1951
1951 Amer. Jrnl. Bot. 38 158/1 Supplementary micro-mineral elements were supplied.
1974 Jrnl. Dental Res. 53 853 (title) Mineral composition of normal human enamel and dentin and the relation of composition to dental caries. II. Microminerals.
1989 Agronomy Jrnl. 81 876 Micromineral supplementation..may be needed for ruminants consuming Brassica grown on soils with low micromineral availabilities.
1997 Nexus (Boulder, Colorado) Mar. 67/1 Especially rich in vitamins.., a broad spectrum of macro and micro minerals plus neuropeptides (brain nutrients).
This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022).
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n.1872- to make much matter of
- to make much menace
- to make much of
- to make much on
- to make much way
- to make muckle phrase about
- to make music
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- to make new
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- to make no
- to make no bones about
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- to make no matter