| Word | Definitions | Synonyms |
|---|---|---|
| proaccelerin | (noun) a coagulation factor | Synonyms: accelerator factor, factor V, prothrombin accelerator |
| proactive | (adjective) descriptive of any event or stimulus or process that has an effect on events or stimuli or processes that occur subsequently | - |
| (adjective) (of a policy or person or action) controlling a situation by causing something to happen rather than waiting to respond to it after it happens | - |