| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| phlogiston |
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| SYLLABICATION: | phlo·gis·ton |
| PRONUNCIATION: |  fl -j s t n , -t n |
| NOUN: | A hypothetical substance formerly thought to be a volatile constituent of all combustible substances, released as flame in combustion. | | ETYMOLOGY: | From Greek, neuter of phlogistos, inflammable, from phlogizein, to set on fire, from phlox, phlog-, flame. See bhel-1 in Appendix I.
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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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