The difference between arm and tentacle suckers is subtle. Arm tentacles have suckers all the way down the length of the arm. Tentacles have suckers only at the tips.
The arm of an octopus is called a tentacle.
It is a tentacle.
A tentacle is a flexible organ found in animals, particularly invertebrates. Some synonyms for the word 'tentacle' include appendage, arm, limb, and feeler.
To capture pray
Tentacle Arm Kragle Outside Sprayer
arm is compact in size
An arm is what you used to type the question. The hand is what I used to type this answer.