arm definition | Dictionary.com

arm

1 [ahrm]

–noun

1.	the upper limb of the human body, esp. the part extending from the shoulder to the wrist.

2.	the upper limb from the shoulder to the elbow.

3.	the forelimb of any vertebrate.

4.	some part of an organism like or likened to an arm.

5.	any armlike part or attachment, as the tone arm of a phonograph.

6.	a covering for the arm, esp. a sleeve of a garment: the arm of a coat.

7.	an administrative or operational branch of an organization: A special arm of the government will investigate.

8.	Nautical. any of the curved or bent pieces of an anchor, terminating in the flukes.

9.	an armrest.

10.	an inlet or cove: an arm of the sea.

11.	a combat branch of the military service, as the infantry, cavalry, or field artillery.

12.	power; might; strength; authority: the long arm of the law.

13.	Typography. either of the extensions to the right of the vertical line of a K or upward from the vertical stem of a Y.

—Idioms

14.	an arm and a leg, a great deal of money: Our night on the town cost us an arm and a leg.

15.	arm in arm, with arms linked together or intertwined: They walked along arm in arm.

16.	at arm's length, not on familiar or friendly terms; at a distance: He's the kind of person you pity but want to keep at arm's length.

17.	in the arms of Morpheus, asleep: After a strenuous day, he was soon in the arms of Morpheus.

18.	on the arm, Slang. free of charge; gratis: an investigation of policemen who ate lunch on the arm.

19.

put the arm on, Slang.

a.	to solicit or borrow money from: She put the arm on me for a generous contribution.

b.	to use force or violence on; use strong-arm tactics on: If they don't cooperate, put the arm on them.

20.	twist someone's arm, to use force or coercion on someone.

21.	with open arms, cordially; with warm hospitality: a country that receives immigrants with open arms.

Origin:
bef. 900; ME; OE earm; c. Goth arms, ON armr, OFris erm, D, OS, OHG arm (G Arm) arm; L armus, Serbo-Croatian rȁme, rȁmo shoulder; akin to Skt īrmá, Avestan arəma-, OPruss irmo arm; not akin to L arma arm ²

Related forms:

armed, adjective

armlike, adjective

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arm

2 [ahrm]

–noun

1.	Usually, arms. weapons, esp. firearms.

2.	arms, Heraldry. the escutcheon, with its divisions, charges, and tinctures, and the other components forming an achievement that symbolizes and is reserved for a person, family, or corporate body; armorial bearings; coat of arms.

–verb (used without object)

3.	to enter into a state of hostility or of readiness for war.

–verb (used with object)

4.	to equip with weapons: to arm the troops.

5.	to activate (a fuze) so that it will explode the charge at the time desired.

6.	to cover protectively.

7.	to provide with whatever will add strength, force, or security; support; fortify: He was armed with statistics and facts.

8.	to equip or prepare for any specific purpose or effective use: to arm a security system; to arm oneself with persuasive arguments.

9.	to prepare for action; make fit; ready.

—Idioms

10.

bear arms,

a.	to carry weapons.

b.	to serve as a member of the military or of contending forces: His religious convictions kept him from bearing arms, but he served as an ambulance driver with the Red Cross.

11.	take up arms, to prepare for war; go to war: to take up arms against the enemy.

12.	under arms, ready for battle; trained and equipped: The number of men under arms is no longer the decisive factor in warfare.

13.	up in arms, ready to take action; indignant; outraged: There is no need to get up in arms over such a trifle.

Origin:
1200–50 for v.; 1300–50 for n.; (v.) ME armen < AF, OF armer < L armāre to arm, v. deriv. of arma (pl.) tools, weapons (not akin to arm ¹ ); (n.) ME armes (pl.) ≪ L arma, as above

Related forms:

armless, adjective

Synonyms:
8. outfit.

Antonyms:
5. deactivate, disarm.

ARM

adjustable-rate mortgage.

Arm

Armenian.

Arm.

Armenian.

2.	Armorican.

Ar.M.

Master of Architecture.

Origin:
< NL Architecturae Magister

arm⋅rest

[ahrm-rest]

–noun

a projecting, often padded support for the forearm, as at the side of a chair or sofa or between seats in a theater, car, or airplane.

Also called arm.

Origin:
1885–90; arm ¹ + rest ¹

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Link To arm

ad·just·a·ble-rate mortgage (ə-jŭst'ə-bəl-rāt')
n. Abbr. ARM
A mortgage whose interest rate is raised or lowered at periodic intervals according to the prevailing interest rates in the market. Also called variable-rate mortgage.

arm¹ (ärm)

An upper limb of the human body, connecting the hand and wrist to the shoulder.
A part similar to a human arm, such as the forelimb of an animal or a long part projecting from a central support in a machine.
Something, such as a sleeve on a garment or a support on a chair, that is designed to cover or support the human arm.
A relatively narrow extension jutting out from a large mass: an arm of the sea. See Synonyms at branch.
An administrative or functional branch, as of an organization.
Power or authority: the long arm of the law.
Sports The skill of throwing or pitching a ball well.

[Middle English, from Old English earm; see ar- in Indo-European roots.]
armed (ärmd) adj.

arm² (ärm)

A weapon, especially a firearm: troops bearing arms; ICBMs, bombs, and other nuclear arms.
A branch of a military force: infantry, armor, and other combat arms.
arms
1. Warfare: a call to arms against the invaders.
2. Military service: several million volunteers under arms; the profession of arms.
3. Heraldry Bearings.
4. Insignia, as of a state, an official, a family, or an organization.
arms
1. Heraldry Bearings.
2. Insignia, as of a state, an official, a family, or an organization.

v. armed, arm·ing, arms

v. intr.

To supply or equip oneself with weaponry.
To prepare oneself for warfare or conflict.

v. tr.

To equip with weapons: armed themselves with loaded pistols; arm a missile with a warhead; arm a nation for war.
To equip with what is needed for effective action: tax advisers who were armed with the latest forms.
To provide with something that strengthens or protects: a space reentry vehicle that was armed with a ceramic shield.
To prepare (a weapon) for use or operation, as by releasing a safety device.

[From Middle English armes, weapons, from Old French, pl. of arme, weapon, from Latin arma, weapons; see ar- in Indo-European roots. V., Middle English armen, from Old French armer, from Latin armāre, from arma.]
armed (ärmd) adj., arm'er n.

ARM
abbr. adjustable-rate mortgage

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Arm

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.]

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

2. Anything resembling an arm; as, (a) The fore limb of an animal, as of a bear. (b) A limb, or locomotive or prehensile organ, of an invertebrate animal. (c) A branch of a tree. (d) 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. (f) An inlet of water from the sea. (g) A support for the elbow, at the side of a chair, the end of a sofa, etc.

3. 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.

Arm

Arm\, n. [See Arms.] (Mil.) (a) A branch of the military service; as, the cavalry arm was made efficient. (b) A weapon of offense or defense; an instrument of warfare; -- commonly in the pl.

Arm

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.]

1. To take by the arm; to take up in one's arms. [Obs.]

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.

2. To furnish with arms or limbs. [R.]

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

3. 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.

4. 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.

5. 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.

Arm

Arm\, v. i. To provide one's self with arms, weapons, or means of attack or resistance; to take arms. " 'Tis time to arm." --Shak.

Language Translation for : arm

Spanish: brazo,

German: der Arm,

Japanese: 腕

More Translations »

arm (1)

"body part," O.E. earm "arm," from P.Gmc. *armaz (cf. O.S., M.Du., Ger. arm, O.N. armr, O.Fris. erm), from PIE base *ar- "fit, join" (cf. Skt. irmah "arm," Armenian armukn "elbow," O.Prus. irmo "arm," Gk. arthron "a joint," L. armus "shoulder"). Arm of the sea was in O.E. Armchair is from 1633; adj. sense in ref. to "criticism of matters in which the critic takes no active part" is from 1886. Arm-twister "powerful persuader" is from 1938. Arm-wrestling is from 1971. Armpit first attested c.1400; fig. sense of "ugly, disgusting place" is U.S. student slang, c.1965.

arm (2)

"weapon," 1300, from O.Fr. armes (pl.), from L. arma "weapons," lit. "tools, implements (of war)," from PIE base *ar- "fit, join." The notion seems to be "that which is fitted together." Meaning "heraldic insignia" (in coat of arms, etc.) is 1330; originally they were borne on shields of fully armed knights or barons. The verb meaning "to furnish with weapons" is from 1205. Arms race first attested 1936.

Main Entry: arm
Pronunciation: 'ärm
Function: noun
1 a : a human upper limb b : the part of the human upper limb between theshoulder and the wrist also : BRACHIUM
2 a : the forelimb of a vertebrate other than ahuman being b : a limb of an invertebrate animal c : any of the usually two parts of a chromosome lateral to the centromere

arm ¹ (ärm)
n.
An upper limb of the human body, connecting the hand and wrist to the shoulder.

ARM
1. Advanced RISC Machine.
Originally Acorn RISC Machine.
2. Advanced RISC Machines Ltd.
3. ["The Annotated C++ Reference Manual", Margaret A. Ellis and Bjarne Stroustrup, Addison-Wesley, 1990].
4. Active Reconfiguring Message.
(1997-10-03)

Arm

used to denote power (Ps. 10:15; Ezek. 30:21; Jer. 48:25). It is also used of the omnipotence of God (Ex. 15:16; Ps. 89:13; 98:1; 77:15; Isa. 53:1; John 12:38; Acts 13:17)

Easton's 1897 Bible Dictionary
Cite This Source

arm

In addition to the idioms beginning with arm, also see at arm's length; babe in arms; forewarned is forearmed; give one's eyeteeth (right arm); long arm of the law; one-armed bandit; put the arm on; shot in the arm; take up arms; talk someone's arm off; twist someone's arm; up in arms; with one arm tied behind; with open arms.

ARM

adjustable rate mortgage
Alien Resistance Movement
antiradiation missile
Armenia (international vehicle ID)

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