Arm (#), n. [AS. arm, earm; akin to OHG. aram, G., D., Dan., & Sw. arm, Icel. armr, Goth. arms, L. armus arm, shoulder, and prob. to Gr. joining, joint, shoulder, fr. the root to join, to fit together; cf. Slav. rame. . See Art, Article.]


The limb of the human body which extends from the shoulder to the hand; also, the corresponding limb of a monkey.


Anything resembling an arm

; as, (a)

The fore limb of an animal, as of a bear.


A limb, or locomotive or prehensile organ, of an invertebrate animal.


A branch of a tree.


A slender part of an instrument or machine, projecting from a trunk, axis, or fulcrum; as, the arm of a steelyard.

(e) Naut

The end of a yard; also, the part of an anchor which ends in the fluke.


An inlet of water from the sea.


A support for the elbow, at the side of a chair, the end of a sofa, etc.


Fig.: Power; might; strength; support; as, the secular arm; the arm of the law.

To whom is the arm of the Lord revealed? Isa. lii. 1.

Arm's end, the end of the arm; a good distance off. Dryden. -- Arm's length, the length of the arm. -- Arm's reach, reach of the arm; the distance the arm can reach. -- To go (or walk) arm in arm, to go with the arm or hand of one linked in the arm of another. "When arm in armwe went along." Tennyson. -- To keep at arm's length, to keep at a distance (literally or figuratively); not to allow to come into close contact or familiar intercourse. -- To work at arm's length, to work disadvantageously.


© Webster 1913.

Arm, n. [See Arms.] Mil. (a)

A branch of the military service; as, the cavalry arm was made efficient.


A weapon of offense or defense; an instrument of warfare; -- commonly in the pl.


© Webster 1913.

Arm, v. t. [imp. & p. p. Armed (#); p. pr. & vb. n. Arming.] [OE. armen, F. armer, fr. L. armare, fr. arma, pl., arms. See arms.]


To take by the arm; to take up in one's arms.


And make him with our pikes and partisans A grave: come, arm him. Shak.

Arm your prize; I know you will not lose him. Two N. Kins.


To furnish with arms or limbs.


His shoulders broad and strong, Armed long and round. Beau. & Fl.


To furnish or equip with weapons of offense or defense; as, to arm soldiers; to arm the country.

Abram . . . armed his trained servants. Gen. xiv. 14.


To cover or furnish with a plate, or with whatever will add strength, force, security, or efficiency; as, to arm the hit of a sword; to arm a hook in angling.


Fig.: To furnish with means of defense; to prepare for resistance; to fortify, in a moral sense.

Arm yourselves . . . with the same mind. 1 Pet. iv. 1.

To arm a magnet, to fit it with an armature.


© Webster 1913.

Arm, v. i.

To provide one's self with arms, weapons, or means of attack or resistance; to take arms.

" 'Tis time to arm."


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© Webster 1913.