The definition of viscous is sticky or not easily able to flow.(adjective)
An example of something viscous is maple syrup.
See viscous in Webster's New World College Dictionary
Origin: ME viscouse < LL viscosus < L viscum, birdlime made from mistletoe berries, mistletoe, prob. < IE base *weis-: see virus
See viscous in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old French
Origin: , from Late Latin viscōsus; see viscose.
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