Definitions

1. noun

A long, slender, flexible part of an animal, especially an octopus, that is used for grasping and crawling.

“The octopus used its tentacles to climb out of the aquarium.”

2. noun

A branch or appendage that is used for a particular purpose, such as grasping or feeling.

“The tree’s long tentacle-like root system helped it absorb water from the dry soil.”

3. noun

A part of a machine or device that is used for grasping or holding something.

“The tentacle on the robot’s arm was used to pick up small objects.”