dose

noun
\ ˈdōs How to pronounce dose (audio) \

Definition of dose

 (Entry 1 of 2)

1a : the measured quantity of a therapeutic agent to be taken at one time
b : the quantity of radiation administered or absorbed
2 : a portion of a substance added during a process
3 : an amount of something likened to a prescribed or measured quantity of medicine a daily dose of hard work a dose of scandal
4 : a gonorrheal infection

dose

verb
dosed; dosing

Definition of dose (Entry 2 of 2)

transitive verb

1 : to give a dose to especially : to give medicine to
2 : to divide into doses dose a medicine
3 : to treat with an application or agent

Examples of dose in a Sentence

Noun I've been taking the same dose for five years. a large dose of vitamin C The drug is lethal even in small doses. a large dose of sugar a high dose of radiation Her parents hoped a daily dose of hard work would keep her out of trouble. He needs a good dose of reality. Verb Most patients are dosed at 50 milligrams per day. See More
Recent Examples on the Web: Noun So far most of the data comes from Israel, which in January began giving a fourth dose, or second booster, of the Pfizer COVID vaccine to people 60 years of age or older. Esther Landhuis, Scientific American, 28 Apr. 2022 In recent weeks, following the introduction of a fourth COVID-19 vaccine dose for some older and high-risk populations, there has been a slight uptick in the overall number of doses administered. Arielle Mitropoulos, ABC News, 25 Apr. 2022 The results from Europe, including the Israeli studies, show that the fourth dose is safe. Catherine Ho, San Francisco Chronicle, 16 Apr. 2022 People with certain immune deficiencies can also get a fourth dose in the US. Jen Christensen, CNN, 5 Apr. 2022 For all the attention on the fourth dose, millions of eligible Americans haven't bothered to get their third. NBC News, 5 Apr. 2022 The Food and Drug Administration last week authorized Americans 50 and over to get a fourth Covid vaccine dose. Marty Makary, WSJ, 3 Apr. 2022 Many scientists who support a fourth dose for some older adults see little evidence that people under 60 or even 65 would clearly benefit. Yasmeen Abutaleb And Lena H. Sun, Anchorage Daily News, 2 Apr. 2022 News of record-low hospitalizations comes after discussions in The White House about running out of funding to pay for a potential fourth COVID-19 vaccine dose for all Americans. Giovana Gelhoren, PEOPLE.com, 1 Apr. 2022 Recent Examples on the Web: Verb Each person received one milligram psilocybin at the start of the trial followed by a second one milligram dose three weeks later. Bruce Y. Lee, Forbes, 12 Apr. 2022 That later dose, Marks said, may not be the same version of the shots currently in use — regulators may transition to a variant-specific vaccine or one that targets more than one strain. NBC News, 30 Mar. 2022 That is about 500 times the radiation dose the skin or tissue would normally receive in a nuclear medicine imaging procedure. Daniel Fass, STAT, 30 Dec. 2021 John Moore, a professor of microbiology and immunology at Weill Cornell Medical College, said Pfizer had to make a decision about which dose to study in the clinical trials. NBC News, 11 Feb. 2022 These complementary trends—forgetful bodies, fast-changing viruses—push us to dose against the flu every fall. Jacob Stern, The Atlantic, 1 Feb. 2022 Unimmunized adults in that age group were also 17 times more likely to be admitted to hospital than those who had received either two shots of a mRNA vaccine or one Johnson & Johnson dose. Washington Post, 19 Jan. 2022 Unvaccinated employees and those who have not received their second Pfizer or Moderna dose in the last six months can leave their house five days after they were exposed, but should wear a mask in public for another five days. Connor Sanders, The Salt Lake Tribune, 3 Jan. 2022 The agency also said people would be eligible for the third Pfizer dose five months after getting the second shot, shortening the minimum wait time for a booster by one month. Harold Maass, The Week, 4 Jan. 2022 See More

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

First Known Use of dose

Noun

15th century, in the meaning defined at sense 1a

Verb

1654, in the meaning defined at sense 1

History and Etymology for dose

Noun

Middle English, from Middle French, from Late Latin dosis, from Greek, literally, act of giving, from didonai to give — more at date

Buying Guide

Our Reviews team has selected the best multivitamins.

Learn More About dose

Time Traveler for dose

Time Traveler

The first known use of dose was in the 15th century

See more words from the same century

Dictionary Entries Near dose

dosage response

dose

dos gris

See More Nearby Entries 

Statistics for dose

Last Updated

10 May 2022

Cite this Entry

“Dose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dose. Accessed 18 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for dose

dose

noun
\ ˈdōs How to pronounce dose (audio) \

Kids Definition of dose

 (Entry 1 of 2)

: a measured amount to be used at one time a dose of medicine

dose

verb
dosed; dosing

Kids Definition of dose (Entry 2 of 2)

: to give medicine to

dose

noun
\ ˈdōs How to pronounce dose (audio) \

Medical Definition of dose

 (Entry 1 of 2)

1a : the measured quantity of a therapeutic agent to be taken at one time
b : the quantity of radiation administered or absorbed
2 : a gonorrheal infection

dose

verb
dosed; dosing

Medical Definition of dose (Entry 2 of 2)

transitive verb

1 : to divide (as a medicine) into doses
2 : to give a dose to especially : to give medicine to
3 : to treat with an application or agent

intransitive verb

: to take medicine he is forever dosing but he gets worse

WORD OF THE DAY

Test Your Vocabulary

Great Words for Scrabble

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

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