I. -kənt adjective
Etymology: eradic ate + -ant
: acting or tending to act as a pesticidal eradicant
an eradicant spray
II. noun
( -s )
: an agent of eradication ; especially : a pesticidal spray used to destroy a parasitic organism at its source before it reaches the suscept
an eradicant applied to scab-infested apple leaves on the ground
— compare protectant