efficacious

Rank #8515 in frequency

Meanings & Definitions

adjective

"Please ensure the cleaning solution is efficacious before using it on the marble countertops"

"This soap is efficacious at removing tough stains"

"The teacher's method proved efficacious in helping students learn"

"Is this new medicine efficacious for treating headaches?"

"I feel so relieved knowing we found an efficacious solution to the problem"

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