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electrostriction
electrostriction n. 
/iˌlɛktroʊˈstrɪkʃ(ə)n/ chiefly Physics change in the volume or shape of a substance, esp. a dielectric, resulting from the application of an electric field (cf. piezoelectricity n.).
Brit. /ᵻˌlɛktrə(ʊ)ˈstrɪkʃn/
, /ᵻˌlɛktrə(ʊ)ˈstrɪkʃn/U.S. /əˌlɛktroʊˈstrɪkʃ(ə)n/
, /əˌlɛktroʊˈstrɪkʃ(ə)n//iˌlɛktroʊˈstrɪkʃ(ə)n/ΚΠ
1878 E. J. Mills in Proc. Royal Soc. 26 505 If the bulb of an ordinary thermometer be coated chemically with silver, and then electrically with a metallic deposit, the mercury will traverse some portion of the scale... To this phenomenon I have given the name electrostriction.
1960 E. D. P. De Robertis Gen. Cytol. (ed. 3) xvi. 458 In cyclosis, waves of changes in viscosity and electrostriction take place throughout the protoplasm.
2001 R. W. Cahn Coming of Materials Sci. vii. 275 Due to their high piezoelectric response, ‘electrostriction’ in ferroelectrics, induced by an applied electric field, can be used as strain-inducing components.
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