sui generis Hear it!

sui generis definition

sui ge·neris (so̵̅o̅′ē jen′ər is, so̵̅o̅′ī)

without a counterpart or equal; unique

Etymology: L, lit., of his (or her or its) own kind

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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