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micropowder
micropowder n.
Brit. 
/ˈmʌɪkrə(ʊ)ˌpaʊdə/
, /ˈmʌɪkrə(ʊ)ˌpaʊdə/U.S. /ˈmaɪkroʊˌpaʊdər/
/ˈmaɪkroʊˌpaʊdər/ΚΠ
1953 Electronic Engin. 25 233/1 Micropowder magnets can be made—after the powder has been produced—in a great variety of shapes.
1965 New Scientist 6 May 368/1 This metal could be either in very finely divided state (micropowder) or else as a sintered iron oxide compound.
1992 Instruments & Exper. Techniques 35 592 A micropowder jet target made from Mo, W, Ni..is described.
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