allotropicaladj.

Brit.

/ˌaləˈtrɒpᵻkl/, U.S.

/ˌæləˈtrɑpək(ə)l/

Origin: Formed within English, by derivation; modelled on a Swedish lexical item. Etymons: allo- comb. form, -tropic comb. form, -al suffix¹, allotropic adj.

Etymology: < allo- comb. form + -tropic comb. form + -al suffix¹, ultimately after Swedish allotropisk: see slightly earlier allotropic adj. and compare the foreign-language forms cited at that entry.

Chemistry.

= allotropic adj.

ΘΚΠ

the world > matter > chemistry > polymorphism > [adjective] > of or relating to allotropy

allotropic1843

allotrophic1845

allotropical1845

1845 Chemist 6 210/1 I have not yet succeeded in animating the two allotropical modifications of platinum so far as to convert ammonia into water, and nitric acid, or the chlorides of the alkaline metals into chlorates.

1853 M. Faraday Lect. Introd. 40 We can only demonstrate the allotropical substance to be phosphorus by reducing it to its original state.

1901 Foundry July 212/1 This reason lies partially in the inability of chemical analysis to distinguish between the different allotropical forms of the same substance.

1982 J. Mehra & H. Rechenberg Hist. Devel. Quantum Theory iii. 368 J. Bergengren had observed different K-edges for different allotropical forms of phosphorus.

This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021).

单词	allotropical
释义	allotropicaladj. Brit. /ˌaləˈtrɒpᵻkl/, U.S. /ˌæləˈtrɑpək(ə)l/ Origin: Formed within English, by derivation; modelled on a Swedish lexical item. Etymons: allo- comb. form, -tropic comb. form, -al suffix¹, allotropic adj. Etymology: < allo- comb. form + -tropic comb. form + -al suffix¹, ultimately after Swedish allotropisk: see slightly earlier allotropic adj. and compare the foreign-language forms cited at that entry. Chemistry. = allotropic adj. ΘΚΠ the world > matter > chemistry > polymorphism > [adjective] > of or relating to allotropy allotropic1843 allotrophic1845 allotropical1845 1845 Chemist 6 210/1 I have not yet succeeded in animating the two allotropical modifications of platinum so far as to convert ammonia into water, and nitric acid, or the chlorides of the alkaline metals into chlorates. 1853 M. Faraday Lect. Introd. 40 We can only demonstrate the allotropical substance to be phosphorus by reducing it to its original state. 1901 Foundry July 212/1 This reason lies partially in the inability of chemical analysis to distinguish between the different allotropical forms of the same substance. 1982 J. Mehra & H. Rechenberg Hist. Devel. Quantum Theory iii. 368 J. Bergengren had observed different K-edges for different allotropical forms of phosphorus. This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021). < adj.1845
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