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单词 magnetite
释义

WordReference Random House Learner's Dictionary of American English © 2024
mag•net•ite /ˈmægnɪˌtaɪt/USA pronunciation   n. [uncountable]
  1. Mineralogya common black mineral that is the most magnetic mineral and an important iron ore.

WordReference Random House Unabridged Dictionary of American English © 2024
mag•net•ite  (magni tīt′),USA pronunciation n. 
  1. Mineralogya very common black iron oxide mineral, Fe3O4, that is strongly attracted by magnets: an important iron ore.
  • 1850–55; magnet + -ite1; compare German Magnetit

Collins Concise English Dictionary © HarperCollins Publishers::
magnetite /ˈmæɡnɪˌtaɪt/ n
  1. a black magnetic mineral, found in igneous and metamorphic rocks and as a separate deposit. It is a source of iron. Composition: iron oxide. Formula: Fe3O4. Crystal structure: cubic
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