1. Any projection that is thought to resemble an arm; SYN. branch.
2. Technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb.
3. The part of an armchair or sofa that supports the elbow and forearm of a seated person.

1. To prepare for a military confrontation; SYN. build up, fortify, gird.
2. To supply with arms.

Short for Advanced RISC Machines. A name for any of a group of small, high-performance 32-bit RISC-based microprocessors licensed to various semiconductor manufacturers by designer ARM Limited. ARM chips are notable for their low cost and efficient use of power. They are used in a wide variety of products, including mobile phones, handheld computers, automotive and embedded solutions, and consumer electronics, including digital cameras and game systems. See also StrongARM.
(abbreviation for Advanced RISC Machine) Microprocessor developed by Acorn 1985 for use in the Archimedes microcomputer. In 1990 the company Advanced RISC Machines was formed to develop the ARM microprocessor. The ARM is microprocessor in Apple's Newton.

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