| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
| |
| colcothar |
| |
| SYLLABICATION: | col·co·thar |
| PRONUNCIATION: |  k l k -thr, -thär |
| NOUN: | A brownish-red ferric oxide obtained as a residue after heating ferrous sulfate, used in glass polishing and as a pigment. | | ETYMOLOGY: | Medieval Latin, from Spanish colcótar, from Arabic qulqu  r, possibly from Greek khalkanthos, copper sulfate : khalkos, copper + anthos, flower.
| | |
| |
| 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. |
|
|
