aaS

Aas is an acronym and name used in various domains. In different contexts, AAS can refer to a professional scientific society, a type of academic degree, or a class of chemical compounds, among other uses.

The American Astronomical Society (AAS) is a leading US-based professional organization for astronomers and planetary scientists. Founded in 1899, it aims to advance and communicate astronomy. It organizes meetings, provides fellowships and mentorship, and publishes several scientific journals, including The Astronomical Journal and The Astrophysical Journal.

Associate of Applied Science (AAS) is a two-year degree common in community colleges and technical schools. It emphasizes practical, skill‑based instruction in fields such as nursing, information technology, engineering technology, and allied disciplines. Some programs prepare graduates directly for employment, while others allow transfer to four‑year programs for further study.

Anabolic-androgenic steroids (AAS) are synthetic derivatives of testosterone used medically to treat hormone deficiencies and muscle-wasting conditions. They are also misused in sports for performance enhancement. Use, possession, and distribution are regulated in many countries due to health risks, which can include cardiovascular and liver effects, hormonal imbalances, and dependence.

Aas is also a Norwegian surname and toponym; the diacritic form Ås is common in Norway, and anglicized spellings sometimes appear as Aas in historical records. Additionally, various places in Nordic regions have names that can be transliterated as Aas, reflecting common linguistic roots.