- The definition of a tentacle is a flexible arm used to touch and grab things, or the sensitive hairs on a plant leaf.
An example of a tentacle is one of the eight arms of an octopus.
The tentacles of an octopus.
tentacle definition by Webster's New World
- any of a variety of long, slender, flexible growths, as about the head or mouth of some invertebrate animals, used variously for grasping, feeling, moving, etc.
- Bot. any of various sensitive hairs on the leaves of some plants, as those used in capturing insects
Origin: Modern Latin tentaculum ; from Classical Latin tentare, to touch: see tent
tentacle definition by American Heritage Dictionary
- Zoology An elongated flexible unsegmented extension, as one of those surrounding the mouth or oral cavity of the squid, used for feeling, grasping, or locomotion.
- Botany One of the sensitive hairs on the leaves of insectivorous plants, such as the sundew.
- A similar part or extension, especially with respect to the ability to grasp or stretch: an espionage network with far-reaching tentacles.
Origin: New Latin tentāculum, from Latin tentāre, to feel, try; see tentative.
- ten·tacˈu·lar adjective
tentacle - Medical Definition
tentacle - Science Definition