Meaning of ARM in English

I. ˈärm noun

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

Date: before 12th century

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

2. : something like or corresponding to an arm: 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

• arm·less ˈärm-ləs adjective

• arm·like -ˌlīk adjective

- arm in arm

II. verb

Etymology: 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

Date: 12th century

transitive verb

1. : to furnish or equip with weapons

2. : to furnish with something that strengthens or protects

arm ing 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

III. noun

Usage: often attributive

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

Date: 13th century


a. : a means (as a weapon) of offense or defense ; especially : firearm

b. : a combat branch (as of an army)

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

2. plural

a. : the hereditary heraldic devices of a family

b. : heraldic devices adopted by a government

3. plural

a. : active hostilities : warfare

a call to arm s

b. : military service

- up in arms

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.