submicroscopicaladj.
/ˌsʌbmʌɪkrəˈskɒpɪkl/, U.S. /ˈˌsəbˌmaɪkrəˈskɑpɪk(ə)l/ = submicroscopic adj.
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the world > life > biology > laboratory analysis > material > [adjective] > conditions of material
submicroscopical1879
naive1906
compatible1926
ultrathin1949
untypable1950
histocompatible1956
the world > space > extension in space > measurable spatial extent > smallness > [adjective] > extremely small > so as to be invisible > invisible even with microscope
submicroscopic1843
submicroscopical1879
1879 Amer. Med. Jrnl. 7 358 Pain..only signifies that antagonistic forces are at work in the economy, or that undue pressure, or friction, perhaps, in some minute, or sub-microscopical structure exists.
1954 Ann. Reg. 1953 373 The determination of the structure of molecules in the sub-microscopical genes that regulate heredity.
1976 Dermatologica 153 209 No submicroscopical alterations of the cytoplasm were found in the interacting cells.
2004 in W. E. Craighead & C. B. Nemeroff Corsini Encycl. Psychol. (ed. 3) 703/1 Some phenomena can be analyzed to the point at which sight and touch give out and the investigator is forced to resort to sub-microscopical concepts.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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adj.1879