Asst. Assistant.
astr., astron. Astronomer; Astronomy.
astrol. Astrology.
ats. At suit of.
Att., Atty. Attorney.
Att.-gen. Attorney-general.
at. wt. Atomic weight.
Au (L. aurum), gold.
A.U.C., anno urbis conditæ, or ab urbe conditâ=In the year from the building of the city—Rome (753 B.C.).
Aug. August.