arm

1 of 5

noun (1)

ˈärm

plural arms

: a human upper limb

especially : the part between the shoulder and the wrist

: something like or corresponding to an arm: such as

: the forelimb of a vertebrate

: a limb of an invertebrate animal

: a branch or lateral shoot of a plant

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

: the end of a ship's yard

also : the part of an anchor from the crown to the fluke see anchor illustration

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

: an inlet of water (as from the sea)

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

: power, might

the long arm of the law

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

: sleeve

: the ability to throw or pitch a ball well

also : a player having such ability

: a functional division of a group, organization, institution, or activity

the logistical arm of the air force

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.

armless

ˈärm-ləs

adjective

armlike

ˈärm-ˌlīk

adjective

arm

2 of 5

verb

armed; arming; arms

transitive verb

: to furnish or equip with weapons

: to furnish with something that strengthens or protects

arming citizens with the right to vote

: to equip or ready for action or operation

arm a bomb

intransitive verb

: to prepare oneself for struggle or resistance

arm for combat

arm

3 of 5

noun (2)

often attributive

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

especially : firearm

: a combat branch (as of an army)

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

arms plural

: the hereditary heraldic devices of a family

: heraldic devices adopted by a government

arms plural

: active hostilities : warfare

a call to arms

: military service

Arm

4 of 5

abbreviation (1)

Armenian

ARM

5 of 5

abbreviation (2)

adjustable rate mortgage

Word History

Etymology

Noun (1)

Middle English, going back to Old English earm, arm, going back to Germanic *arma-, masculine, (whence also Old Frisian erm "arm," Old Saxon arm, Old High German aram, arm, Old Norse armr, Gothic arms), going back to Indo-European *h₂orH-mo-, whence also Old Church Slavic ramo "shoulder," Bosnian-Croatian-Serbian rȁme, stem rȁmen-, Czech ráměk; a parallel zero-grade *h₂r̥H-mó- gives Old Prussian irmo "arm," Lithuanian (eastern dialects) ìrmėdė "pain from gout, chill, fever" (irm- "arm" + -ėdė "eating"), Sanskrit īrmá- "arm," Avestan arəma-; Latin armus "forequarter (of an animal), shoulder" probably goes back to *h₂erH-mo-

Note: Usually claimed to be a derivative of the verb *h₂er- "fit, join" (see arm entry 3)—very plausible semantically—though the Sanskrit and Baltic forms require a second laryngeal (*h₂erH-) in the base (cf. Rix et al., Lexikon der indogermanischen Verben, 2. Auflage, Wiesbaden, 2001, where the verbal base is posited without a second laryngeal). Could the suffix be *-H-mo-? The Slavic noun fluctuates in inflection between -mo- and -men- (see André Vaillant, Grammaire comparée des langues slaves, II:1 [Lyon, 1958], pp. 214-15). According to P. Schrijver, The Reflexes of the Proto-Indo-European Laryngeals in Latin (Amsterdam, 1991), p. 194, Latin armus cannot be traced to *h₂r̥H-mo-, which would have yielded *ramus. Regarding Armenian armukn "elbow," see H. K. Martirosyan, Etymological Dictionary of the Armenian Inherited Lexicon, Leiden, 2010, s.v.

Verb

Middle English armen, borrowed from Anglo-French armer, going back to Latin armāre, derivative of arma "implements of war, weapons, equipment" — more at arm entry 3

Noun (2)

Middle English armes (plural), "weapons, the military profession, heraldic devices," borrowed from Anglo-French, plural of arme "weapon," going back to Latin arma (neuter plural) "implements of war, weapons, equipment," derivative, with a suffix *-mo-, from a presumed verbal base *ar-, going back to Indo-European *h₂er- "fit, join," whence Greek reduplicated aorist ḗraron "(I) fit together, equipped, fit closely" (from which present tense ararískō, ararískein), ármenos (middle participle) "fitting, suited to," and (with suffixed *-smo- giving initial aspiration?) harmós "joint," hárma, harmat- "chariot, team of horses"; Armenian arari "(I) made," aṙnem "I make"

Note: See also art entry 1, arthro-, article entry 1, artiodactyl.

First Known Use

Noun (1)

before the 12th century, in the meaning defined at sense 1

Verb

13th century, in the meaning defined at transitive sense 2

Noun (2)

13th century, in the meaning defined at sense 1a

Kids Definition

arm 1 of 3

noun

ˈärm

: a human upper limb especially between the shoulder and wrist

: something like an arm in shape or position

an arm of the sea

the arm of a chair

: sleeve sense 1

: power entry 1 sense 1

the long arm of the law

: a foreleg of a four-footed animal

arm

2 of 3

verb

armed; arming

: to provide with weapons

: to provide with a way of fighting, competing, or succeeding

She armed her lawyer with facts.

arm

3 of 3

noun

: weapon, firearm

: a branch of an army or of the military forces

arms plural : the designs on a shield or flag of a family or government

arms plural : actual fighting : warfare

a call to arms

Medical Definition

arm

noun

ˈärm

: a human upper limb

: the part of the human upper limb between the shoulder and the wrist

also : brachium

: the forelimb of a vertebrate other than a human being

: a limb of an invertebrate animal

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

: 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., The New England Journal of Medicine

arm 1 of 3

noun (1)

as in gun

a portable weapon from which a shot is discharged by gunpowder soldiers grabbing their arms and helmets and heading into battle

Synonyms & Similar Words

Relevance

gun
firearm
rifle
pistol
small arm
handgun
revolver
shotgun
musket
piece
rod
heat
firelock
derringer
zip gun
sidearm
carbine
gat
harquebus
semiautomatic
blunderbuss
culverin
machine gun
automatic
roscoe
matchlock
repeater
machine pistol
submachine gun
flintlock
.45
tommy gun
smoothbore
six-gun
fieldpiece
breechloader
assault rifle
assault weapon
six-shooter
speargun
forty-five
self-loader
arquebus
AK-47
.22
twenty-two

arm

2 of 3

noun (2)

as in department

a large unit of a governmental, business, or educational organization a company that needs to beef up its marketing arm if it wants to compete in today's business world

Synonyms & Similar Words

department
agency
bureau
office
desk
branch
service
division
subdepartment
subdivision

as in bay

a part of a body of water that extends beyond the general shoreline this arm of the Atlantic is surprisingly peaceful, as the stronger ocean currents do not reach this far

Synonyms & Similar Words

bay
firth
estuary
cove
gulf
port
bight
inlet
loch
creek
strait
harbor
fjord
embayment
bayou
narrow
sound
fiord
road(s)
slough
slew
roadstead
backwater
slue

as in cape

an area of land that juts out into a body of water Maine has so many long, narrow arms that jut out into the ocean that early coastal settlers found it much easier to travel by sea

Synonyms & Similar Words

cape
peninsula
point
spit
ness
promontory
headland
jetty
breakwater
foreland

as in power

the right or means to command or control others few criminals manage to permanently escape the long arm of the law

Synonyms & Similar Words

power
control
sway
dominion
grip
reign
command
clutch
authority
jurisdiction
hold
sovereignty
influence
mastery
leverage
death grip
pull
management
voice
rein(s)
clout
dominance
right
privilege
direction
weight
imperium
prerogative
supremacy
importance
predominance
moment
eminence
sovranty

Antonyms & Near Antonyms

weakness
impotence
powerlessness
helplessness
impotency

arm

3 of 3

verb

as in to portion

Synonyms & Similar Words

portion
fortify
hand out
reequip
allot
prepare
dole out
allocate
refit
dispense
distribute
assign
rig
supply
stock
outfit
present
donate
prorate
refurnish
parcel (out)
mete (out)
apportion
store
deal (out)
contribute
provision
reoutfit
bestow
equip
gird
give
furnish
kit (up or out)
accoutre
accouter
fit (out)

Antonyms & Near Antonyms

strip
deprive
divest
dispossess

单词	arm
释义	arm 1 of 5 noun (1) ˈärm plural arms 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. armless ˈärm-ləs adjective armlike ˈärm-ˌlīk adjective arm 2 of 5 verb armed; arming; arms 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 3 of 5 noun (2) often attributive 1 a : 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 Arm 4 of 5 abbreviation (1) Armenian ARM 5 of 5 abbreviation (2) adjustable rate mortgage Phrases arm in arm : with arms linked together up in arms : aroused and ready to undertake a fight or conflict Synonyms Noun (1) agency branch bureau department desk division office service Noun (2) firearm gun heat [slang] piece small arm See all Synonyms & Antonyms Example Sentences 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. See More Word History Etymology Noun (1) Middle English, going back to Old English earm, arm, going back to Germanic arma-, masculine, (whence also Old Frisian erm* "arm," Old Saxon arm, Old High German aram, arm, Old Norse armr, Gothic arms), going back to Indo-European h₂orH-mo-, whence also Old Church Slavic ramo* "shoulder," Bosnian-Croatian-Serbian rȁme, stem rȁmen-, Czech ráměk; a parallel zero-grade h₂r̥H-mó- gives Old Prussian irmo* "arm," Lithuanian (eastern dialects) ìrmėdė "pain from gout, chill, fever" (irm- "arm" + -ėdė "eating"), Sanskrit īrmá- "arm," Avestan arəma-; Latin armus "forequarter (of an animal), shoulder" probably goes back to h₂erH-mo- Note: Usually claimed to be a derivative of the verb h₂er- "fit, join" (see arm entry 3)—very plausible semantically—though the Sanskrit and Baltic forms require a second laryngeal (h₂erH-) in the base (cf. Rix et al., Lexikon der indogermanischen Verben,* 2. Auflage, Wiesbaden, 2001, where the verbal base is posited without a second laryngeal). Could the suffix be -H-mo-? The Slavic noun fluctuates in inflection between -mo-* and -men- (see André Vaillant, Grammaire comparée des langues slaves, II:1 [Lyon, 1958], pp. 214-15). According to P. Schrijver, The Reflexes of the Proto-Indo-European Laryngeals in Latin (Amsterdam, 1991), p. 194, Latin armus cannot be traced to h₂r̥H-mo-, which would have yielded ramus. Regarding Armenian armukn "elbow," see H. K. Martirosyan, Etymological Dictionary of the Armenian Inherited Lexicon, Leiden, 2010, s.v. Verb Middle English armen, borrowed from Anglo-French armer, going back to Latin armāre, derivative of arma "implements of war, weapons, equipment" — more at arm entry 3 Noun (2) Middle English armes (plural), "weapons, the military profession, heraldic devices," borrowed from Anglo-French, plural of arme "weapon," going back to Latin arma (neuter plural) "implements of war, weapons, equipment," derivative, with a suffix -mo-, from a presumed verbal base ar-, going back to Indo-European h₂er- "fit, join," whence Greek reduplicated aorist ḗraron* "(I) fit together, equipped, fit closely" (from which present tense ararískō, ararískein), ármenos (middle participle) "fitting, suited to," and (with suffixed -smo- giving initial aspiration?) harmós* "joint," hárma, harmat- "chariot, team of horses"; Armenian arari "(I) made," aṙnem "I make" Note: See also art entry 1, arthro-, article entry 1, artiodactyl. First Known Use Noun (1) before the 12th century, in the meaning defined at sense 1 Verb 13th century, in the meaning defined at transitive sense 2 Noun (2) 13th century, in the meaning defined at sense 1a Phrases Containing arm arm wrestling an arm and a leg arm and a leg arm candy arm's length arm in arm as long as your/my arm chance one's arm at arm's length one-arm bandit keep (someone or something) at arm's length rocker arm put the arm on roll-over arm straight-arm strong-arm the long arm of the law small arm twist one's arm twist someone's arm cost an arm and a leg on one's arm arm-twisting stiff-arm shot in the arm See More arm wrestling an arm and a leg arm and a leg arm candy arm's length arm in arm as long as your/my arm chance one's arm at arm's length one-arm bandit keep (someone or something) at arm's length rocker arm put the arm on roll-over arm straight-arm strong-arm the long arm of the law small arm twist one's arm twist someone's arm cost an arm and a leg on one's arm arm-twisting stiff-arm shot in the arm See More Kids Definition arm 1 of 3 noun ˈärm 1 : a human upper limb especially between the shoulder and wrist 2 : something like an arm in shape or position an arm of the sea the arm of a chair 3 : sleeve sense 1 4 : power entry 1 sense 1 the long arm of the law 5 : a foreleg of a four-footed animal arm 2 of 3 verb armed; arming 1 : to provide with weapons 2 : to provide with a way of fighting, competing, or succeeding She armed her lawyer with facts. arm 3 of 3 noun 1 : weapon, firearm 2 : a branch of an army or of the military forces 3 arms plural : the designs on a shield or flag of a family or government 4 arms plural : actual fighting : warfare a call to arms Medical Definition arm noun ˈärm 1 a : a human upper limb b : the part of the human upper limb between the shoulder and the wrist also : brachium 2 a : the forelimb of a vertebrate other than a human being b : a limb of an invertebrate animal c : any of the usually two parts of a chromosome lateral to the centromere 3 : 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., The New England Journal of Medicine Legal Definition ARM abbreviation adjustable rate mortgage arm 1 of 3 noun (1) as in gun a portable weapon from which a shot is discharged by gunpowder soldiers grabbing their arms and helmets and heading into battle Synonyms & Similar Words Relevance gun firearm rifle pistol small arm handgun revolver shotgun musket piece rod heat firelock derringer zip gun sidearm carbine gat harquebus semiautomatic blunderbuss culverin machine gun automatic roscoe matchlock repeater machine pistol submachine gun flintlock .45 tommy gun smoothbore six-gun fieldpiece breechloader assault rifle assault weapon six-shooter speargun forty-five self-loader arquebus AK-47 .22 twenty-two arm 2 of 3 noun (2) 1 as in department a large unit of a governmental, business, or educational organization a company that needs to beef up its marketing arm if it wants to compete in today's business world Synonyms & Similar Words department agency bureau office desk branch service division subdepartment subdivision 2 as in bay a part of a body of water that extends beyond the general shoreline this arm of the Atlantic is surprisingly peaceful, as the stronger ocean currents do not reach this far Synonyms & Similar Words bay firth estuary cove gulf port bight inlet loch creek strait harbor fjord embayment bayou narrow sound fiord road(s) slough slew roadstead backwater slue 3 as in cape an area of land that juts out into a body of water Maine has so many long, narrow arms that jut out into the ocean that early coastal settlers found it much easier to travel by sea Synonyms & Similar Words cape peninsula point spit ness promontory headland jetty breakwater foreland 4 as in power the right or means to command or control others few criminals manage to permanently escape the long arm of the law Synonyms & Similar Words power control sway dominion grip reign command clutch authority jurisdiction hold sovereignty influence mastery leverage death grip pull management voice rein(s) clout dominance right privilege direction weight imperium prerogative supremacy importance predominance moment eminence sovranty Antonyms & Near Antonyms weakness impotence powerlessness helplessness impotency arm 3 of 3 verb as in to portion Synonyms & Similar Words portion fortify hand out reequip allot prepare dole out allocate refit dispense distribute assign rig supply stock outfit present donate prorate refurnish parcel (out) mete (out) apportion store deal (out) contribute provision reoutfit bestow equip gird give furnish kit (up or out) accoutre accouter fit (out) Antonyms & Near Antonyms strip deprive divest dispossess Phrases Containing arm shot in the arm small arm twist one's arm shot in the arm small arm twist one's arm
随便看	polytheistic polytheistical polytheists polythene polythenes polythionic acid Polytoma polytomous polytomy polytonal polytonalism polytonalisms polytonalist polytonalities polytonality polytonally polytone polytonic polytopic polytopically polytopism polytopy Polytrichaceae polytrichaceous Polytrichales

arm

noun (1)

verb

noun (2)

abbreviation (1)

abbreviation (2)

Synonyms

Example Sentences

Word History

Phrases Containing arm

Kids Definition

noun

verb

noun

Medical Definition

noun

Legal Definition

abbreviation

noun (1)

noun (2)

verb

Phrases Containing arm