anorthosite
[ an-awr-thuh-sahyt ]
/ ænˈɔr θəˌsaɪt /
noun Petrology.
a granular plutonic rock composed largely of labradorite or a more calcic feldspar.
Origin of anorthosite
OTHER WORDS FROM anorthosite
an·or·tho·sit·ic [an-aw-thuh-sit-ik] /ænˌɔ θəˈsɪt ɪk/, adjectiveWords nearby anorthosite
anorgasmy,
anorthic,
anorthite,
anorthoclase,
anorthography,
anorthosite,
anoscope,
anosigmoidoscopy,
anosmia,
anosognosia,
anosognosic epilepsy
Example sentences from the Web for anorthosite
In Canada great portions of the eastern portion of the Dominion are formed of gabbros, norite, anorthosite and allied rock types.
British Dictionary definitions for anorthosite
anorthosite
/ (ænˈɔːθəˌsaɪt) /
noun
a coarse-grained plutonic igneous rock consisting almost entirely of plagioclase feldspar
Word Origin for anorthosite
C19: from French
anorthose (see
an-,
ortho-) +
-ite
1
Scientific definitions for anorthosite
anorthosite
[ ăn-ôr′thə-sīt′ ]
An igneous rock consisting almost entirely of plagioclase feldspar, especially the labradorite variety. Anorthosites have been identified among rock samples collected from the Moon.