The definition of a tentacle is a flexible arm used to touch and grab things, or the sensitive hairs on a plant leaf.(noun)
An example of a tentacle is one of the eight arms of an octopus.
See tentacle in Webster's New World College Dictionary
Origin: ModL tentaculum < L tentare, to touch: see tent
See tentacle in American Heritage Dictionary 4
Origin: New Latin tentāculum
Origin: , from Latin tentāre, to feel, try; see tentative.
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