Operative

An undercover operative infiltrated the organization.

Sami was an undercover police operative.

In aggravated cases, when the patient is suffering pain, when his occupation is interfered with by repeated attacks of phlebitis, or when there are large pouches on the veins, operative treatment is called for.

He's usually in a good mood — the operative word there being "usually". Today was a disaster.

an operative motive

It holds in all operative principles.

This call is operative not merely on the level of abstract theory.

an operative dose, rule, or penalty

operative surgery

Practically 50 per cent of the female operatives are found in the two groups aged 15 to 19 and 20 to 24 years, while only 18.2 per cent of the female nonoperatives are found in these age groups.