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microparticle
microparticle n. 
/ˈmʌɪkrə(ʊ)ˌpɑːtᵻkl/,
Brit. /ˌmʌɪkrə(ʊ)ˈpɑːtᵻkl/
, /ˌmʌɪkrə(ʊ)ˈpɑːtᵻkl//ˈmʌɪkrə(ʊ)ˌpɑːtᵻkl/U.S. /ˌmaɪkroʊˈpɑrdək(ə)l/
/ˌmaɪkroʊˈpɑrdək(ə)l/ΚΠ
1956 World Politics 8 462 Soviet philosophers of science..felt called upon to contend that beneath the superficial appearance of indeterminacy the micro-particles of quantum theory must fully conform to a law of ‘deeper causal determination’ of the micro-processes.
1969 Encycl. Sci. Suppl. (Grolier) 78 The search continues for facts about the similarities and differences between ‘organized elements’, microfossils, and microparticles formed from amino acid polymers.
1984 Listener 13 Dec. 11/2 We explain the behaviour of surface features of a phenomenon such as the transparency of glass or the liquidity of water in terms of the behaviour of microparticles such as molecules.
1991 Lancet 25 May 1289/1 The microparticles stimulate the mucosal immune system because they are taken up across the intestine through Peyer's patches.
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