| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| duodecimo |
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| SYLLABICATION: | du·o·dec·i·mo |
| PRONUNCIATION: | d  -d s -m , dy - |
| NOUN: | Inflected forms: pl. du·o·dec·i·mos 1. The size (5 by 73/4 inches) of book pages formed by folding single sheets from a printing press into 12 leaves each. 2. A book composed of pages of this size. In both senses also called twelvemo. | ETYMOLOGY: | Latin (in) duodecim , (in) a twelfth, ablative of duodecimus, twelfth. See duodecimal.
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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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