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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.
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2-3) Above, David Goad of the Arkansas Game and Fish Commission, left, and Donnie Harris of the U.
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Brinda Jackson, who became the first African-American woman in Arkansas registered to practice architecture when she passed her Architectural Registration Exam in 1991.
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work on the southern United States' endangered red-cockaded woodpecker, if she'd fly to Arkansas in 48 hours, telling no one what she was going to do.
No charges will be filed against the Arkansas man because he acted in self-defense.
During our investigation of nursing home-related tuberculosis (TB) in Arkansas, we used a database of all DNA fingerprints obtained from Arkansas isolates in 1991-1999.
Also of concern was the lack of meaningful cultural/social activities for African-American SGL/LGBT in Arkansas.
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