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One that functions or is shaped like a tongue.
[Middle English, from Old French languete, diminutive of langue, tongue, from Latin lingua; see dn̥ghū- in Indo-European roots.]
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.
rare anything resembling a tongue in shape or function
[C15: from Old French languette, diminutive of langue tongue]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
any of various small tongue-shaped parts, processes, or projections.
[1375–1425; late Middle English < Middle French languete, diminutive of langue tongue; see language, -et]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.