1. long, flexible appendages of certain animals (such as octopuses, squids, or jellyfish) used for grasping, feeling, or moving
Usage: biology
2. something that resembles or functions like an animal’s tentacle, especially in reaching out or grasping
Usage: figurative

Examples

• The octopus wrapped its tentacles around the crab.
• Jellyfish use their tentacles to capture small fish.
• The squid’s tentacles are covered with suction cups.
• The plant’s tentacles moved slowly toward the light.
• The corporation extended its tentacles into new markets.
• Long tentacles of fog reached across the harbor.