mega·​dose | \ ˈme-gə-ˌdōs How to pronounce megadose (audio) \

Definition of megadose

: a large dose (as of a vitamin)

Examples of megadose in a Sentence

He took megadoses of vitamin C.
Recent Examples on the Web Logging on already provides a daily megadose of paranoia (mass surveillance), epistemic vertigo (deepfakes), and fremdschämen (thirstposting). Meghan O'gieblyn, Wired, "Is the Internet Conscious? If It Were, How Would We Know?," 16 Sep. 2020 The play encapsulated so many of the defining football characteristics Bernard brought to the Bengals that year (and years since): elusivity, creativity, electricity, relentlessness and a megadose of fun. Paul Dehner Jr.,, "No. 4 Cincinnati Bengals play of last 30 years: Gio Bernard spins Dolphins in circles," 27 June 2018 Perhaps a megadose of LSD, or a shroom trip, or one more ayahuasca ceremony will finally heal me. Stuart Leach, Washington Post, "He just wanted a new prescription. He ended up in the psych ward instead.," 25 Mar. 2018 Arkansas’ protocol calls for a 500-miligram megadose of midazolam. Washington Post, "Arkansas executions raise questions again about sedative," 26 Apr. 2017 The network has been turning politics into sport for nearly 20 years: Zucker just gave the model a megadose of steroids. New York Times, "The 4.9.17 Issue," 21 Apr. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'megadose.' 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 megadose

1971, in the meaning defined above

Keep scrolling for more

Learn More about megadose

Time Traveler for megadose

Time Traveler

The first known use of megadose was in 1971

See more words from the same year

Statistics for megadose

Cite this Entry

“Megadose.” Dictionary, Merriam-Webster, Accessed 28 Nov. 2020.

Keep scrolling for more

More Definitions for megadose


How to pronounce megadose (audio)

English Language Learners Definition of megadose

US : a large amount of medicine, vitamins, etc. : a large dose


mega·​dose | \ -ˌdōs How to pronounce megadose (audio) \

Medical Definition of megadose

: a large dose (as of a vitamin)

Comments on megadose

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


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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