arm

noun (1)

\ ˈärm

plural arms

Definition of arm

(Entry 1 of 5)

1 : a human upper limb especially : the part between the shoulder and the wrist

2 : something like or corresponding to an arm: such as

a : the forelimb of a vertebrate

b : a limb of an invertebrate animal

c : a branch or lateral shoot of a plant

d : a slender part of a structure, machine, or an instrument projecting from a main part, axis, or fulcrum

e : the end of a ship's yard also : the part of an anchor from the crown to the fluke — see anchor illustration

f : any of the usually two parts of a chromosome lateral to the centromere

3 : an inlet of water (as from the sea)

4 : a narrow extension of a larger area, mass, or group

5 : power, might the long arm of the law

6 : a support (as on a chair) for the elbow and forearm

7 : sleeve

8 : the ability to throw or pitch a ball well also : a player having such ability

9 : a functional division of a group, organization, institution, or activity the logistical arm of the air force

10 medical : a group of subjects provided a particular treatment in a clinical trial Since this trial did not include a radiation-only treatment arm, it has been questioned whether radiation therapy alone might be as effective as sequential chemotherapy and radiation therapy in preserving the larynx.— Everett E. Vokes et al.

arm in arm

: with arms linked together

arm

verb

armed; arming; arms

Definition of arm (Entry 2 of 5)

transitive verb

1 : to furnish or equip with weapons

2 : to furnish with something that strengthens or protects arming citizens with the right to vote

3 : to equip or ready for action or operation arm a bomb

intransitive verb

: to prepare oneself for struggle or resistance arm for combat

arm

noun (2), often attributive

Definition of arm (Entry 3 of 5)

1a : a means (such as a weapon) of offense or defense especially : firearm

b : a combat branch (as of an army)

c : an organized branch of national defense (such as the navy)

2 arms plural

a : the hereditary heraldic devices of a family

b : heraldic devices adopted by a government

3 arms plural

a : active hostilities : warfare a call to arms

b : military service

up in arms

: aroused and ready to undertake a fight or conflict

Arm

abbreviation (1)

Definition of Arm (Entry 4 of 5)

Armenian

ARM

abbreviation (2)

Definition of ARM (Entry 5 of 5)

adjustable rate mortgage

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Examples of arm in a Sentence

Verb

They armed the men for battle. The group of fighters was armed by a foreign government. The two countries have been arming themselves for years, but now they have agreed to disarm. We armed ourselves with the tools we would need to survive in the forest. They arm people with accurate information. arming women with the right to vote Once the bomb has been armed, we have five minutes to escape.

History and Etymology for arm

Noun (1)

Middle English, from Old English earm; akin to Latin armus shoulder, Sanskrit īrma arm

Verb

Middle English armen, from Anglo-French armer, from Latin armare, from arma weapons, tools; akin to Latin ars skill, Greek harmos joint, arariskein to fit

Noun (2)

Middle English armes (plural) weapons, from Anglo-French, from Latin arma

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More Definitions for arm

ARM

abbreviation

Financial Definition of ARM

What It Is

An adjustable-rate mortgage (ARM) is a type of mortgage using a varying interest rate calculated by adding a premium to a specific benchmark rate. These

arm

Definition of arm

Other Words from arm

Examples of arm in a Sentence

First Known Use of arm

History and Etymology for arm

Financial Definition of ARM

arm

Definition of arm

Other Words from arm

Examples of arm in a Sentence

First Known Use of arm

History and Etymology for arm

Financial Definition of ARM

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