ar·​ma·​men·​tar·​i·​um | \ ˌär-mə-ˌmen-ˈter-ē-əm How to pronounce armamentarium (audio) , -mən- \
plural armamentaria\ ˌär-​mə-​ˌmen-​ˈter-​ē-​ə How to pronounce armamentarium (audio) \

Definition of armamentarium

: a collection of resources available or utilized for an undertaking or field of activity especially : the equipment, methods, and pharmaceuticals used in medicine

Examples of armamentarium in a Sentence

Recent Examples on the Web Hyaluronic acid is one of the most effective, dependable, and accessible moisturizers available in the entire complexion armamentarium. Hannah Morrill, Marie Claire, "Hyaluronic Acid 101: A User's Guide," 17 Nov. 2020 The goal is not just to find biological markers of risk, but to tailor care accordingly—sometimes by reaching beyond psychiatry's usual armamentarium—and improve the prognosis of Moe and others like him. Emily Underwood, Science | AAAS, "Brain scans could help personalize treatment for people who are depressed or suicidal," 20 Aug. 2019 But as time has worn on, SSRIs seem more like just another middling tool in the psychiatric armamentarium. Moises Velasquez-manoff, WIRED, "Ketamine Stirs Up Hope—and Controversy—as a Depression Drug," 8 May 2018 By identifying a fresh target for therapy — the TB bacterium's waxy outer jacket — the new research lays the groundwork for adding to the armamentarium against TB, said Dr. Marcus Horwitz, a UCLA infectious disease expert and longtime TB researcher. Melissa Healy,, "Scientists have a promising new approach for treating drug-resistant tuberculosis," 25 Apr. 2018 The doctor-patient conversation is the single most powerful diagnostic tool in the medical armamentarium. Danielle Ofri, Slate Magazine, "Is Your Doctor Listening?," 7 Feb. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'armamentarium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of armamentarium

circa 1860, in the meaning defined above

History and Etymology for armamentarium

borrowed from Latin armāmentārium "storehouse for military equipment, armory," from armāmenta "sailing gear of a ship, equipment, implements" + -ārium -ary entry 1 — more at armament

Keep scrolling for more

Learn More about armamentarium

Time Traveler for armamentarium

Time Traveler

The first known use of armamentarium was circa 1860

See more words from the same year

Statistics for armamentarium

Last Updated

1 Dec 2020

Cite this Entry

“Armamentarium.” Dictionary, Merriam-Webster, Accessed 26 Jan. 2021.

Keep scrolling for more

More Definitions for armamentarium


ar·​ma·​men·​tar·​i·​um | \ ˌär-mə-ˌmen-ˈter-ē-əm, -mən- How to pronounce armamentarium (audio) \
plural armamentaria\ -​ē-​ə How to pronounce armamentarium (audio) \

Medical Definition of armamentarium

: a collection of resources available or utilized for an undertaking or field of activity especially : the equipment, methods, and pharmaceuticals used in medicine

More from Merriam-Webster on armamentarium

Thesaurus: All synonyms and antonyms for armamentarium

Comments on armamentarium

What made you want to look up armamentarium? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!