1. [ noun ] an active and efficient cause; capable of producing a certain effect

"their research uncovered new disease agents"

Related terms: causal_agent disinfectant impairer vasoconstrictor teratogen shortener transmitter mutagen enlivener relaxer represser satisfier stressor eliminator antifungal weakener retardant biohazard infectious_agent lethal_agent motor antiflatulent
2. [ noun ] a representative who acts on behalf of other persons or organizations
Related terms: representative booker purchasing_agent business_agent government_agent handler shipping_agent mill_agent parliamentary_agent next_friend deputy proxy employment_agent secret_agent freight_agent special_agent talent_agent universal_agent bailee shopper literary_agent
3. [ noun ] a substance that exerts some force or effect
Related terms: causal_agent drug coolant solvent solvating_agent antacid bacteriostat anticoagulant bleaching_agent disinfectant blocker hypoglycaemic_agent lactifuge chemical_agent nerve_gas precipitant viricide coagulant diluent emmenagogue galactagogue hypnagogue vermicide inducer antifungal lactogen mitogen antiflatulent
4. [ noun ] (business) a businessman who buys or sells for another in exchange for a commission
Synonyms: factor broker
Related terms: businessperson realtor stockbroker insurance_broker investment_banker auctioneer ship_broker syndic travel_agent brokerage
5. [ noun ] (grammar) the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause
Synonyms: agentive_role
Related terms: participant_role
6. [ noun ] Last name, frequency rank in the U.S. is 32500
7. [ noun ] (work,government) any agent or representative of a federal agency or bureau
Synonyms: federal_agent
Related terms: official trustbuster Federal Indian_agent
Similar spelling:   agential