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Ar

   Also found in: Dictionary/thesaurus, Legal, Financial, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
AR alarm reaction; aortic regurgitation; artificial respiration.
Ar argon.
Ar
The symbol for the element argon.

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

AR,
abbreviation for assisted respiration.

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

Ar
chemical symbol, argon.

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


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