| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| anorthosite |
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| SYLLABICATION: | an·or·tho·site |
| PRONUNCIATION: |   n-ôr th -s t |
| NOUN: | A variety of diorite consisting chiefly of feldspar. | | ETYMOLOGY: | French anorthose, a kind of feldspar ( Greek an-, not; see a–1 + Greek orthos, straight) + –ite1. | | OTHER FORMS: | an·ortho·sitic (-s tk) —ADJECTIVE
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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