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单词 aeschynite
释义

Definition of aeschynite in English:

aeschynite

(also eschynite)
noun ˈɛskɪnʌɪt
Mineralogy
  • A dark brown rock-forming mineral containing cerium, titanium, and niobium; now also more fully "aeschynite-(Ce)". Also: either of two related minerals, in which cerium and calcium are replaced either by yttrium, erbium, and calcium (more fully "aeschynite-(Y)"), or else by neodymium and cerium (more fully "aeschynite-(Nd)").

Origin

Mid 19th century; earliest use found in Edinburgh Journal Science. From German Aeschynit from Swedish äschynit from ancient Greek αἰσχύνη shame, dishonour, disgrace + Swedish -it. The mineral is so named in allusion to the inability of chemical science, at the time of the discovery of the mineral, to isolate some of its constituents.

Definition of aeschynite in US English:

aeschynite

(also eschynite)
nounˈɛskɪnʌɪt
Mineralogy
  • A dark brown rock-forming mineral containing cerium, titanium, and niobium; now also more fully "aeschynite-(Ce)". Also: either of two related minerals, in which cerium and calcium are replaced either by yttrium, erbium, and calcium (more fully "aeschynite-(Y)"), or else by neodymium and cerium (more fully "aeschynite-(Nd)").

Origin

Mid 19th century; earliest use found in Edinburgh Journal Science. From German Aeschynit from Swedish äschynit from ancient Greek αἰσχύνη shame, dishonour, disgrace + Swedish -it. The mineral is so named in allusion to the inability of chemical science, at the time of the discovery of the mineral, to isolate some of its constituents.

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更新时间:2024/12/25 13:41:39