| TTT | thymol turbidity test; tolbutamide tolerance test; total twitch time; tuberculin tine test |
|---|---|
| VAT | variable antigen type; ventricular accommodation test; ventricular activation time; vesicular amine ... |
| BLS | Basic Life Support |
| ABC | absolute basophil count; absolute bone conduction; acalculous biliary colic; acid balance control; a... |
| BASIC | Beginner's All-Purpose Symbolic Introduction Code |