armrest
noun
- feature of a seat on which occupants can rest their arms
Wiktionary
Pronunciation: /ˈɑɹmˌɹɛst/
noun
Etymology: From arm + rest.
- Part of the seat of a chair that is designed to support the arm.
“Each comes in a carrying case that keeps the devices together with their accessories: the miniplug cable for your music or DVD player, for example, and the adapters for quarter-inch phono jacks and dual-pronged airplane armrest jacks.”