amphibole

noun
am·phi·bole | \ˈam(p)-fə-ˌbōl \

Definition of amphibole 

2 : any of a group of complex silicate minerals with like crystal structures that contain calcium, sodium, magnesium, aluminum, or iron ions or a combination of them

First Known Use of amphibole

1799, in the meaning defined at sense 1

History and Etymology for amphibole

French, from Late Latin amphibolus, from Greek amphibolos ambiguous, from amphiballein to throw round, doubt, from amphi- + ballein to throw — more at devil

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The first known use of amphibole was in 1799

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amphibole

noun
am·phi·bole | \ˈam(p)-fə-ˌbōl \

Medical Definition of amphibole 

: any of a group of complex silicate minerals with like crystal structures that contain calcium, sodium, magnesium, aluminum, and iron ions or a combination of them — see crocidolite

More from Merriam-Webster on amphibole

Britannica.com: Encyclopedia article about amphibole

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