amphibole

One entry found for amphibole.

Main Entry: am·phi·bole
Pronunciation: 'am(p)-f&-"bOl
Function: noun
Etymology: French, from Late Latin amphibolus, from Greek amphibolos ambiguous, from amphiballein to throw round, doubt, from amphi- + ballein to throw -- more at DEVIL
1 : HORNBLENDE
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