| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| eosin |
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| SYLLABICATION: | e·o·sin |
| PRONUNCIATION: |     -sn |
| NOUN: | 1. A red crystalline powder, C20H8O5Br4, used in textile dyeing and ink manufacturing and in coloring gasoline. 2. The red sodium or potassium salt of this powder, used in biology to stain cells. | | ETYMOLOGY: | Greek  s, dawn (from its color); see aus- in Appendix I + –in.
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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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