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How to Pronounce efficacy?

Correct pronunciation for the word "efficacy" is [ˈɛfɪkəsi], [ˈɛfɪkəsi], [ˈɛ_f_ɪ_k_ə_s_i].

Definition of efficacy

  1. Power to produce a given effect.

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

What are similar-sounding words for efficacy?

What is the adjective for efficacy?

The adjective form of the word "efficacy" is "efficacious".

Usage over time for efficacy:

This graph shows how "efficacy" have occurred between 1800 and 2008 in a corpus of English books.

What is the plural form of efficacy?

The plural form of the word "efficacy" is "efficacies"

What is the singular form of efficacy?

The singular form of the word "efficacy" is "efficacy". It remains the same in both singular and plural forms.

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