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efficacious — successful in producing a desired or intended result; effective

Part of speech: ADJECTIVE

Definition: successful in producing a desired or intended result; effective

Pronunciation (IPA): /ˌefɪˈkeɪʃəs/

Example Sentences

  • My grandmother's chicken soup is surprisingly efficacious against hangovers.
  • The study showed that the new vaccine is highly efficacious in preventing infection.
  • His efficacious study method helped him ace the exam without staying up all night.

efficacious

ADJECTIVE

[/ˌefɪˈkeɪʃəs/]

successful in producing a desired or intended result; effective

Medicine that really works
💡 Concept

Medicine that really works

In capacious labs, tenacious work proves efficacious!
🎵 Rhyme

In capacious labs, tenacious work proves efficacious!

Got the picture? Now let's practice.

🎤Pronunciation

🇺🇸 US/ˌefɪˈkeɪʃəs/
🇬🇧 UK/ˌefɪˈkeɪʃəs/

🌳Etymology

Rooteffic-
Suffix--acious

Origin

From Latin 'efficacious' derived from 'efficax' meaning 'effective' or 'powerful,' which comes from 'efficere' meaning 'to accomplish' or 'to work out,' composed of 'ex-' (out) and 'facere' (to make or do).

Breakdown

ex- (out) + facere (make/do) + -acious (adjective suffix meaning 'full of' or 'inclined to') = efficacious (full of the power to accomplish results)

🎵Rhyme

capacious
tenacious
sagacious

🔗Collocations

efficacious treatment
prove efficacious
highly efficacious
efficacious remedy
efficacious approach
efficacious method

📝Examples

😄 Fun example

“My grandmother's chicken soup is surprisingly efficacious against hangovers.”

“The study showed that the new vaccine is highly efficacious in preventing infection.”

“His efficacious study method helped him ace the exam without staying up all night.”

😄 Fun example

“Coffee is efficacious in turning zombies back into humans every morning.”

📚Related Words

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