[an.or.tho.site] n [F anorthose, a feldspar, fr. a- + Gk orthos--more at orth-] (1863): a granular plutonic igneous rock composed almost exclusively of a soda-lime feldspar (as labradorite) -- an.or.tho.si.tic adj
ANORTHOSITE
Meaning of ANORTHOSITE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012