英语词汇“rock alum”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

rock alum

/ˈrɒk ˌaləm/

Now chiefly historical

noun

Crystalline alum of high purity, especially that prepared from Italian alunite.

Origin

Mid 17th century. From rock + alum, after French alun de roche (1374 in Middle French; compare Anglo-Norman alome de roche, alum Roche, and Middle French (Tournai) alun en roque) or Italian allume di rocca. Compare post-classical Latin alumen de roca, alumen de rocco, Spanish alumbre de roque, and also Spanish piedra alumbre, Portuguese pedra-ume, in same sense, which show substitution of the respective Spanish and Portuguese reflexes of classical Latin petra rock, stone.

单词	rock alum
释义	rock alum /ˈrɒk ˌaləm/ Now chiefly historical noun Crystalline alum of high purity, especially that prepared from Italian alunite. Origin Mid 17th century. From rock + alum, after French alun de roche (1374 in Middle French; compare Anglo-Norman alome de roche, alum Roche, and Middle French (Tournai) alun en roque) or Italian allume di rocca. Compare post-classical Latin alumen de roca, alumen de rocco, Spanish alumbre de roque, and also Spanish piedra alumbre, Portuguese pedra-ume, in same sense, which show substitution of the respective Spanish and Portuguese reflexes of classical Latin petra rock, stone.
随便看	modette modge modicum modifiability modifiable modificable modificand modification modificational modificative modificator the printed word the proof of the pudding is in the eating the Prophet the Prophets the Psalms the public eye the Punjab the quantity theory of money the Quaternary the Queen Thera therap. therapeutic therapeutical