| ANS | acanthion; American Nutrition Society; 8-anilino-1-naphthalene-sulfonic acid; anterior nasal spine; ... |
|---|---|
| ARA | Academy of Rehabilitative Audiometry; acetylene reduction activity; American Rheumatism Association;... |
| ARCS | Associate of the Royal College of Science |
| ARO | Associate for Research in Ophthalmology |
| ARRC | Associate of the Royal Red Cross |
| associate | a teacher lower in rank than a full professor but higher than an assistant professor |
|---|---|
| associate | associated with or accompanying |
| associate | joined in some kind of relationship (as a colleague or ally or companion etc.) |
| associate | a state or territory partly controlled by (but not a possession of) a stronger state but autonomous in internal affairs |