| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| zoo |
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| VARIANT FORMS: | or zo |
| PREFIX: | 1. Animal; animal kingdom: zoography. 2. Motile: zoospore. | | ETYMOLOGY: | Greek z o-, z io-, from z ion, living being. See gwei- 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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