Simple Definition of tentacle
: one of the long, flexible arms of an animal (such as an octopus) that are used for grabbing things and moving
tentacles : power or influence that reaches into many areas
Full Definition of tentacle
1 : any of various elongate flexible usually tactile or prehensile processes borne by animals and especially invertebrates chiefly on the head or about the mouth
2a : something that resembles a tentacle especially in or as if in grasping or feeling out <corruption spreading its tentacles>b : a sensitive hair or emergence on a plant (as the sundew)
Examples of tentacle
The corporation's tentacles are felt in every sector of the industry.
the tentacles of organized crime
Origin of tentacle
New Latin tentaculum, from Latin tentare to feel, touch — more at tempt
First Known Use: circa 1762
Medical Definition of tentacle
: any of various elongate flexible usually tactile or prehensile processes borne by animals chiefly on the head or about the mouth; especially : one of the threadlike processes bearing nematocysts that hang down from the margin of the umbrella of many jellyfishes
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