CAS
Abbreviation with 6 meanings
| Stands for | Close air support |
|---|---|
| Meanings | 6 |
| Categories | Military, Sports, Medical, Science & Engineering, Education & Academia |
CAS has six meanings. The most common are Close air support (military term) and Court of Arbitration for Sport (sports governing body); it can also stand for Carotid artery stenting, Chemical Abstracts Service, College of Arts and Sciences and Creativity, activity, service.
Meanings of CAS at a glance
| # | CAS stands for | Context |
|---|---|---|
| 1 | Close air support | Military › Military Term |
| 2 | Court of Arbitration for Sport | Sports › Sports Governing Body |
| 3 | Carotid artery stenting | Medical › Cardiology |
| 4 | Chemical Abstracts Service | Science & Engineering › Chemistry |
| 5 | College of Arts and Sciences | Education & Academia › Academic |
| 6 | Creativity, activity, service | Education & Academia › K-12 Education |
1. Close air support
Military · Military Term Abbreviations
Air attacks against enemy forces close to friendly troops, requiring detailed coordination with ground forces to avoid fratricide. Aircraft such as the A-10, AH-64 and F-16 are frequently used.
Example: The JTAC called in CAS from two A-10s to break the ambush.
Close air support is requested in a standardized "9-line" brief. Debates over retiring the A-10, designed specifically for CAS, have run for more than a decade. In medicine, CAS can mean carotid artery stenting.
2. Court of Arbitration for Sport
Sports · Sports Governing Body Abbreviations
International tribunal that settles sports disputes through arbitration, including doping appeals, eligibility cases and contract disputes. During the Olympic Games it sets up ad hoc divisions that rule within 24 hours.
Example: CAS overturned Manchester City's two-year UEFA ban in July 2020.
Established by the IOC in 1984 and based in Lausanne, Switzerland; it was restructured in 1994 to make it independent of the IOC after a Swiss court questioned its impartiality. Its awards can be appealed only to the Swiss Federal Supreme Court on narrow grounds. Also known by its French name, Tribunal Arbitral du Sport (TAS).
3. Carotid artery stenting
Medical · Cardiology Abbreviations
Catheter-based alternative to carotid endarterectomy in which a stent is placed in the narrowed carotid artery, usually with an embolic protection device to catch debris. Transcarotid artery revascularization (TCAR) is a hybrid approach that reverses blood flow in the artery during stenting.
Example: High surgical risk from prior neck radiation: CAS chosen over endarterectomy.
The CREST trial (2010) found similar overall results for stenting and endarterectomy, with more strokes after stenting and more heart attacks after surgery; older patients did better with surgery. Stenting is favored for necks that are hard to operate on, such as after radiation or previous surgery.
4. Chemical Abstracts Service
Science & Engineering · Chemistry Abbreviations
Division of the American Chemical Society that maintains the CAS Registry, the largest database of chemical substances. CAS Registry Numbers, such as 7732-18-5 for water, are unique identifiers used on safety data sheets, regulatory lists and supplier catalogs to avoid confusion among chemical names.
Example: Please quote the CAS number on all purchase requests, since this solvent has several trade names.
A CAS number has up to ten digits in three hyphenated parts, the last being a check digit. The numbers carry no structural meaning; they are assigned in sequence as substances are registered. CAS began in 1907 by publishing Chemical Abstracts, an index of the chemical literature. In documents the identifier is often written CAS No. or CAS RN.
5. College of Arts and Sciences
Education & Academia · Academic Abbreviations
Common name for the undergraduate liberal arts division of a university, housing departments in the humanities, natural sciences and social sciences. Boston University, New York University and Cornell are among the many universities with a CAS.
Example: She is a junior in CAS majoring in economics and minoring in Italian.
Other universities use names such as Arts and Sciences, Letters and Science, or Literature, Science and the Arts. In the International Baccalaureate, CAS means Creativity, Activity, Service. In chemistry, a CAS number identifies a chemical substance.
6. Creativity, activity, service
Education & Academia · K-12 Education Abbreviations
Core requirement of the International Baccalaureate Diploma Programme in which students spend about 18 months on experiences in the arts and creative thinking, physical activity and unpaid service, documented with reflections. The diploma is not awarded unless CAS is completed.
Example: For CAS, she coached a youth soccer team and organized a community art mural.
CAS is one of three core elements, with Theory of Knowledge (TOK) and the Extended Essay. Students must complete at least one CAS project involving collaboration. Unlike the essay and TOK, it is not graded with points. In university names, CAS usually means College of Arts and Sciences.
Related abbreviations
More military term abbreviations
- C4ISR – Command, control, communications, computers, intelligence…
- CAC – Common Access Card
- CACO – Casualty Assistance Calls Officer
- CAP – Combat air patrol
- CASEVAC – Casualty evacuation
- CBRN – Chemical, biological, radiological and nuclear
- CG – Commanding general
- CIC – Combat information center
See all 248 military term abbreviations →
More sports governing body abbreviations
- AELTC – All England Lawn Tennis and Croquet Club
- AFC – Asian Football Confederation
- BCCI – Board of Control for Cricket in India
- CAF – Confederation of African Football
- CONCACAF – Confederation of North, Central America and Caribbean Association…
- CONMEBOL – Confederación Sudamericana de Fútbol (South American Football…
- FA – The Football Association
- FIA – Fédération Internationale de l'Automobile (International Automobile…
See all 37 sports governing body abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.