| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| ellipsoid |
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| SYLLABICATION: | el·lip·soid |
| PRONUNCIATION: | -l p soid |
| NOUN: | A geometric surface, all of whose plane sections are either ellipses or circles. | | OTHER FORMS: | el·lip soid , el·lip soi dal ( -l p soid l, l p-,  l p-) 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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