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argon

 (Ar) [ahr´gon]
a chemical element, atomic number 18, atomic weight 39.948. (See Appendix 6.)

Ar

Symbol for argon.

AR

alarm reaction; aortic regurgitation; artificial respiration.

Ar

argon.

Ar

1 symbol for the element argon.
2 abbreviation for an aromatic group such as phenyl.

AR

abbreviation for assisted respiration.

AREG

A gene on chromosome 4q13-q21 that encodes a member of the epidermal growth factor family, which is an autocrine growth factor and a mitogen for astrocytes, Schwann cells and fibroblasts. AREG interacts with the EGF/TGF-alpha receptor to promote the growth of normal epithelial cells and inhibits certain aggressive carcinoma cell lines.

AR

Autosomal recessive, also
1. Access recirculation, see there.
2. Acoustic reflex.
3. Active resistance–rehabilitation medicine.
4. Adrenergic receptor.
5. Allergic reaction.
6. Allergic rhinitis.
7. Aortic regurgitation.
8. Apical rate.

AR

, A/R
Abbreviation for accounts receivable.

Ar

Symbol for argon

Ar

chemical symbol, argon.
References in periodicals archive ?
The Arkansas Farm to School Month proclamation was co-sponsored by the Arkansas Children's Hospital Research Institute Childhood Obesity Prevention Research Program, Access to Healthy Foods Workgroup of the Arkansas Coalition for Obesity Prevention, the Arkansas Department of Education Child Nutrition Unit, the Arkansas Agriculture Department and the Arkansas MarketMaker program, housed and staffed within the University of Arkansas Cooperative Extension Service.
The exhibit contains photo documentation and drawings of 18 selected Arkansas champion trees by Hot Springs artist Linda Williams Palmer who literally found her inspiration in the forests of Arkansas.
The Arkansas Civil War Sesquicentennial Commission plans to provide 'one-stop shopping' for all events and sites associated with the war in Arkansas and we will continually update its content," ACWSC Chairman Tom Dupree announced.
Ducks and duck hunting are ingrained in both the culture and the economy of eastern Arkansas, thus duck habitat has always been worth fighting for.
Arkansas provided futile resistance, a highly disappointing effort from a game that was considered attractive before the season.
Eastern Arkansas also boasts remote swamps containing old trees.
Then, the young men ran to a nearby gas station where a 64-year-old Arkansas man had stopped to ask for directions.
A study conducted in Arkansas suggests that DNA fingerprint clustering in stable rural populations may result from remote rather than recent transmission (6).
Arkansas is a mostly rural, southern state located in the so-called "Bible Belt" of the U.
About 5,000 claims are expected from Arkansas, with estimated insured losses of $7.
The parents and ballet patrons filed a Freedom of Information Act request this spring in Arkansas Circuit Court, asking the company's board of directors to reveal its reasons for dismissing artistic director Kirt Hathaway and his wife, Linda.
The non-landowning farmers in east Arkansas realized that the only way they could protect their interests was by standing together.

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