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deca-(word root) ten
Examples of words with the root deca-: decade
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree
deca-or dec- also deka- or dek-
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Mathematics) denoting ten: decagon. In conjunction with scientific units the symbol da is used
[from Greek deka]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a combining form meaning “ten”: decapod.Also, esp. before a vowel, dec-.
[< Greek deka-, comb. form of déka ten; c. Latin decem]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A prefix that means "ten," as in decahedron, a polygon having ten faces.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Prefix meaning ten in the metric system; e.g., a decameter is a measure of length equal to 10 m.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited