| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| boulder |
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| SYLLABICATION: | boul·der |
| PRONUNCIATION: |  b l d r |
| VARIANT FORMS: | also bowl·der |
| NOUN: | A large rounded mass of rock lying on the surface of the ground or embedded in the soil. | | ETYMOLOGY: | Middle English bulder, of Scandinavian origin. See bhel-2 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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