ar definition | Dictionary.com

ar-

var. of ad- before r: arrear.

-ar

var. of the adjective-forming suffix -al¹, joined to words in which an l precedes the suffix: circular; lunar; singular.

Origin:
< L -āris; r. ME -er < AF, OF < L -āris

-ar

var. of -er ² , often under the influence of a spelling with -ar- in a cognate Latin noun: burglar; cellar; collar; mortar; poplar; scholar; vicar; vinegar.

-ar

var. of -er ¹ on the model of -ar ² , used in the formation of nouns of agency: liar; beggar.

AR

1.	annual return.

2.	Arkansas (approved esp. for use with zip code).

3.	Army Regulation; Army Regulations.

Ar

Arabic.

Ar

Symbol, Chemistry.

argon.

Ar.

Arabic.

Aramaic.

ar.

arrival.

2.	arrive; arrives.

A/R

1.	account receivable.

2.	accounts receivable.

Also, a/r

A.R.

1.	annual return.

2.	Army Regulation; Army Regulations.

a.r.

Insurance. all risks.

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

ar¹ (är)

n. Variant of are².

ar² (är)

n. The letter r.

[Middle English arre, from Late Latin er.]

Ar
The symbol for the element argon.

AR
abbr.

also A/R accounts receivable
Arkansas
army regulation

are² (âr, är)

n. Abbr. a
A metric unit of area equal to 100 square meters (119.6 square yards).

[French, from Latin ārea, open space; see area.]

ar·gon (är'gŏn')

n. Symbol Ar
A colorless, odorless, inert gaseous element constituting approximately one percent of Earth's atmosphere, from which it is commercially obtained by fractionation for use in electric light bulbs, fluorescent tubes, and radio vacuum tubes and as an inert gas shield in arc welding. Atomic number 18; atomic weight 39.948; melting point -189.3°C; boiling point -185.9°C. See Table at element.

[From Greek ārgon, neuter of ārgos, idle, inert : a-, without; see a-¹ + ergon, work; see werg- in Indo-European roots.]

Ar·kan·sas (är'kən-sô')

A state of the south-central United States bordered on the east by the Mississippi River. It was admitted as the 25th state in 1836. The region was explored by members of Hernando de Soto's expedition in 1541 and passed to the United States in 1803 as part of the Louisiana Purchase. Little Rock is the capital and the largest city. Population: 2,830,000.
Ar·kan'san (är-kān'zən) adj. & n.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Ar\, conj. Ere; before. [Obs.] --Chaucer.

Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Language Translation for : ar

Spanish: aire,

German: die Luft,

Japanese: 空気

More Translations »

Main Entry: Ar
Function: symbol
argon

Ar
The symbol for the element argon.

Ar
The symbol for argon.

argon (är'gŏn') Pronunciation Key
Symbol Ar
A colorless, odorless element in the noble gas group. Argon makes up about one percent of the atmosphere. It is used in electric light bulbs, fluorescent tubes, and radio vacuum tubes. Atomic number 18; atomic weight 39.948; melting point -189.2°C; boiling point -185.7°C. See Periodic Table.

ar networking
The country code for Argentina.
(1999-01-27)

ar
Arabic

Ar
argon

account receivable
accounts receivable
anal retentive
annual return
answer (shortwave transmission)
Arkansas
army regulation

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