efficacy
the power to produce a desired result or effect
Efficacy in a sentence
Here is an example sentence showing efficacy in a sentence.
Researchers questioned the efficacy of the unproven treatment.
Quick GRE check
3 questions, about 2 minutes. How would you do on the real test?
Verbal · Text Completion
The historian argued that the empire's collapse was not blank but the predictable outcome of decades of fiscal mismanagement that contemporaries had simply refused to acknowledge.
More GRE words starting with E
to gradually decline, recede, or diminish
overflowing enthusiasm and liveliness
the quality of overflowing, bubbling enthusiasm
overflowing with cheerful enthusiasm and high spirits
deviating from conventional or accepted behavior in odd ways
a level or rank within an organization, profession, or society
drawing from a wide and diverse range of sources or styles
to deprive of importance or overshadow by being superior
Questions about “efficacy”
See these words the way the GRE tests them.
Take the free 39-minute GRE Quick Mock Test and meet words like this inside real Text Completion and Sentence Equivalence questions, with a worked solution for every answer.