Definition of "reduplication" [re•du•pli•ca•tion]

• The act of reduplicating or the state of being reduplicated. (noun)
• The product or result of reduplicating. (noun)
• Linguistics A word formed by or containing a reduplicated element. (noun)
• Linguistics The added element in a word form that is reduplicated. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The former has final reduplication, which is absent in the latter; e.g., al-yebeb-i’n “I show (or showed) to him, ” al-yeb-in “I shall show him."
• "Another phenomenon closely connected with this part of the subject is that of reduplication, which is produced by simply forming in the astral light a perfect mental image of the object to be copied, and then gathering about that mould the necessary physical matter."
• "Pluperf., and 3d Fut. not only do the same throughout the moods, but also prefix to the _syllabic_ augment the initial consonant of the root ( "reduplication") when this is a simple consonant or a mute followed by a liquid."