Definition of biotite
English to English noun - dark brown to black mica found in igneous and metamorphic rock
source: WordNet 3.0 - Mica containing iron and magnesia, generally of a black or dark green color; -- a common constituent of crystalline rocks. See Mica.
source: Webster 1913
Visual Synonyms 
Nearby Word
biotite, bootie, bittie, bothie, bowtie, bote, bite, bitt, bow tie, bow-tie, bitthead, biota, bobwhite, bitty, bitiw, bifidate, bothidae, butte, betide, battue
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