amphibole noun. ['amfɪbǝʊl] E17.
[French (both senses) from Latin amphibolus ambiguous from Greek amphibolos, from AMPHI- + ballein to throw.]
1. = AMPHIBOLOGY 1. E-M17.

2. Mineralogy. Orig., hornblende. Now, any of a large class of silicate and aluminosilicate rock-forming minerals which form fibrous or columnar crystals (they are characterized by a crystal structure based on cross-linked double chains of SiO₄ tetrahedra). E19.

[TahlilGaran] English Dictionary ▲