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Definition of arm
1 : a human upper limb; especially : the part between the shoulder and the wrist
2 : something like or corresponding to an arm: such asa : the forelimb of a vertebrateb : a limb of an invertebrate animalc : a branch or lateral shoot of a plantd : a slender part of a structure, machine, or an instrument projecting from a main part, axis, or fulcrume : the end of a ship's yard; also : the part of an anchor from the crown to the fluke — see anchor illustrationf : 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
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
arm in arm
Explore Merriam-Webster
Origin and Etymology of arm
Middle English, from Old English earm; akin to Latin armus shoulder, Sanskrit īrma arm
Other Anatomy Terms
arm
Definition of arm
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
Examples of arm in a Sentence
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.
Origin and Etymology of arm
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
arm
Definition of arm
1a : a means (such as a weapon) of offense or defense; especially : firearmb : 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 familyb : heraldic devices adopted by a government
3 arms plural a : active hostilities : warfare a call to armsb : military service
up in arms
: aroused and ready to undertake a fight or conflict
Origin and Etymology of arm
Middle English armes (plural) weapons, from Anglo-French, from Latin arma
Arm
Definition of Arm
Armenian
Other Anthropology Terms
ARM
Definition of ARM
adjustable rate mortgage
Other Economics Terms
Financial Definition of ARM
arm
What It Is
How It Works
The idea behind ARMs is very simple, but there are many covenants that can be included in the contracts to complicate things. Two common types of ARMs are the interest-only ARM and the hybrid ARM. Interest-only ARMs offer a set period during which the borrower only pays the interest on the loan. This reduces the borrower's payment, but it leaves the principal outstanding. Hybrid ARMs offer a fixed interest rate for a period of time and then revert to a variable rate for the remainder of the loan's life. A 3/1 ARM, for example, is a mortgage that carries a fixed rate for the first three years and then adjusts every year thereafter.
In many cases, ARMs have caps -- limits on how high and sometimes how low the interest rate can go, and how much they can move in any one year, month, or quarter. In some cases, the interest rate will only adjust up -- that is, borrowers will get no benefit if interest rates fall.
To understand how adjustable interest rates affect a borrower's payment, let's assume that a bank offers a $100,000 ARM to a potential borrower. The interest rate is the prime rate plus 5% with a maximum of 10%. If the prime rate is 3%, then the borrower's interest rate is 8% (5% + 3%), and the monthly payment would be $733.77. But if the prime rate increases to, say, 4%, then the loan's interest rate resets to 9% (5% + 4%), and the payment is now $804.63.
[InvestingAnswers Feature: Mortgage Calculator: What Will My Monthly Principal & Interest Payment Be?]
Why It Matters
As you can see, ARMs can have complex implications. Thus, as is the case with any loan, borrowers must be sure to read and understand the lender's documentation and contemplate the implications of changes in margins. Borrowers should be sure they can handle the worst-case scenario of being forced to make the highest mortgage payments allowed. Lenders are legally required to disclose how high the borrower's monthly payment might go.
ARM Defined for English Language Learners
arm
Definition of arm for English Language Learners
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: to provide (yourself, a group, a country, etc.) with weapons especially in order to fight a war or battle
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: to provide (someone) with a way of fighting, competing, or succeeding
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: to make (a bomb, weapon, etc.) ready for use
ARM Defined for Kids
Definition of arm for Students
armed
;arming
1 : to provide with weapons
2 : to provide with a way of fighting, competing, or succeeding She armed her lawyer with facts.
Medical Dictionary
arm
playMedical Definition of arm
1a: a human upper limbb: the part of the human upper limb between the shoulder and the wrist; also : brachium
2a: the forelimb of a vertebrate other than a human beingb: a limb of an invertebrate animalc: 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, 21 Jan. 1993
Law Dictionary
ARM
Legal Definition of ARM
adjustable rate mortgage
Learn More about arm
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See words that rhyme with arm Thesaurus: All synonyms and antonyms for arm Spanish Central: Translation of arm Nglish: Translation of arm for Spanish speakers Britannica English: Translation of arm for Arabic speakers Britannica.com: Encyclopedia article about arm
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