1. One who operates.

2. Having power to produce an effect.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• aperiant,
• oleraia,
• operans,
• opperand,
• operand,
• iperant,
• kperant,
• lperant,
• pperant,
• 0perant,
• opperant,
• operrant,
• operate,
• iferant,
• oumbrant,
• operancy,
• vocferant,
• coperant,
• sppurant,
• freranti

• opperman,
• ophryon,
• operon,
• operand.

The adjective form of the word "operant" is "operant".

The plural of the "operant" can be the "operants".

The singular of the "operant" can be the "operant".