alarms is a form of:

Sheepskin



noun
1.
(1. The skin of a sheep either tanned with the fleece left on or in the form of leather or parchment. 2. Informal. A diploma. -attributive. Often used to modify another noun: sheepskin rugs; sheepskin coats) cure sheepskin ស្បែកចៀម
ENGLISH MEANING
noun
1.
The skin of a sheep; or, leather prepared from it.
2.
A diploma; -- so called because usually written or printed on parchment prepared from the skin of the sheep.