deionizev.
/diːˈʌɪənʌɪz/ transitive. To deprive of ions or of ionic character; esp. (a) to cause the positive and negative ions in (a gas or a space) to recombine to form neutral atoms or molecules; (b) to take out of (a liquid, esp. water) the ionic constituents.
ΚΠ
1919 E. W. Stone Elem. Radiotelegr. (1920) viii. 151 Let us assume that..the space between the electrodes is very quickly deionized.
1941 J. D. Cobine Gaseous Conductors iv. 102 The presence of the confining walls aids diffusion processes to deionize the entire volume of an ionized gas, for as the ions reach the walls they lose their charge.
1950 R. Kunin & R. J. Myers Ion Exchange Resins viii. 88 There are three methods for deionizing electrolyte solutions with ion exchange resins.
Derivatives
deˈionized adj.
ΚΠ
1906 G. Mann Chem. Proteids vi. 216 These compounds are therefore formed by the amphoteric amino-acids, simply adding CO2, which thereby becomes de-ionised.
1930 Trans. Amer. Inst. Electr. Engineers 49 58/2 The layer of gas immediately adjacent to the surface becomes very quickly denuded of ions, and then ions which further reach the surface must diffuse through this layer of deionized gas.
1956 Nature 28 Jan. 187/2 The resin was washed with de-ionized water.
1970 Ashmolean Mus. Rep. Visitors 1969 20 Mrs. K. Kimber..cleaned this by applying ‘packs’ of Sepolite..and deionized water to the unpolished surface of the marble.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2021).
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