You searched for: “autotomy
The process by which a limb can be voluntarily shed if grabbed by a predator.

It is found in spiders and grasshoppers, where the leg is shed by the sharp contraction of muscles acting on a special fracture point or area of weakness.

This entry is located in the following unit: Insects, General Applicable Terms (page 2)
Word Entries at Word Info: “autotomy
autotomy, autotomic
1. The spontaneous casting off of a limb or other body part, such as the tail of certain lizards or the claw of a lobster, especially when the organism is injured or under attack.
2. The separation of a body part.
3. The self-amputation of a damaged or trapped appendage.
4. The performance of surgery upon oneself.
This entry is located in the following unit: auto-, aut- (page 21)