AAS

n. a short name for steroids that people sometimes use to build muscle and improve sports performance.

n. initialism for anabolic-androgenic steroids, synthetic derivatives of testosterone used to promote muscle growth and bone density.

“The athlete was banned after testing positive for AAS during the competition.”

“The long-term administration of AAS is associated with significant cardiovascular risks and endocrine disruption in professional bodybuilders.”

Technical

n. a laboratory method used to find out how much of a specific metal is in a sample.

n. initialism for Atomic Absorption Spectroscopy, a spectroanalytical procedure for the quantitative determination of chemical elements.

“The scientists used AAS to check the water for lead and mercury.”

“AAS remains a gold-standard technique for detecting trace concentrations of heavy metals within environmental soil samples.”

Technical

n. a rule in math used to prove that two triangles are exactly the same size and shape.

n. initialism for Angle-Angle-Side, a theorem used to prove the congruence of two triangles if two angles and a non-included side are equal.

“We used the AAS rule to solve the geometry problem on the test.”

“The student correctly identified that the AAS theorem was sufficient to prove the two triangles were congruent despite the missing side length.”

Technical

n. a short name for various groups, like the American Astronomical Society.

n. initialism for several academic and professional organizations, most notably the American Astronomical Society or the Australian Academy of Science.

“She presented her research at the annual AAS meeting in Hawaii.”

“The AAS issued a formal statement regarding the impact of satellite constellations on ground-based astronomical observations.”

Formal