| s | Greek lower case letter sigma; conductivity; cross section; millisecond; molecular type or bond; pop... |
|---|---|
| UHMW | ultrahigh molecular weight |
| AC | 1) Adenylate Cyclase 2) Abdominal Circumference 3) Air Con... |
| AAP | air at atmospheric pressure; American Academy of Pediatrics; American Academy of Pedodontics; Americ... |
| A>B | air greater than bone [conduction] |