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单词 polyanionic
释义

polyanionicadj.

Brit. /ˌpɒlɪanʌɪˈɒnɪk/, U.S. /ˈˌpɑliˌænaɪˈɑnɪk/
Origin: Formed within English, by compounding. Etymons: poly- comb. form, anionic adj. at anion n. Derivatives
Etymology: < poly- comb. form + anionic adj. at anion n. Derivatives Compare slightly later polyanion n., polycationic adj., and earlier polyionic adj.
Chemistry.
Of, relating to, or of the nature of a polyanion; containing polyanions.
ΘΚΠ
the world > matter > chemistry > ions, ionization, or electrolysis > [adjective] > of or relating to ions > of or relating to polyions > of or relating to polyanions
polyanionic1930
1930 Chem. Abstr. 24 2077 [Such] elements..will combine in liquid NH3 with Na to give polysulfide-like compds.,..to which the name ‘polyanionic’ salts is given.
1974 Amer. Jrnl. Anat. 139 404/1 Staining with ruthenium red..reveals that a polyanionic surface coat, probably mucopolysaccharide in nature, covers all the microvilli..on all cell types found in the nasal cavities.
1999 I. Kostov & R. I. Kostov Crystal Habits Minerals vi. 274 The Pa type borates, in the structure of which..polyanionic borate clusters and cationic polyhedra form sheets parallel to {100}.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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adj.1930
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