| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| altocumulus |
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| SYLLABICATION: | al·to·cu·mu·lus |
| PRONUNCIATION: | l t -ky my -l s |
| NOUN: | A cloud formation of rounded, fleecy, white or gray masses. | | ETYMOLOGY: | Latin altus, high; see al-2 in Appendix I + cumulus.
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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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