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medium

American  
[mee-dee-uhm] / ˈmi di əm /

noun

  • media,
    plural
  • mediums
    plural
  1. a middle state or condition; mean.

  2. something intermediate in nature or degree.

  3. an intervening substance, as air, through which a force acts or an effect is produced.

  4. the element that is the natural habitat of an organism.

  5. surrounding objects, conditions, or influences; environment.

  6. an intervening agency, means, or instrument by which something is conveyed or accomplished.

    Words are a medium of expression.

  7. one of the means or channels of general communication, information, or entertainment in society, as newspapers, radio, or television.

  8. Biology. the substance in which specimens are displayed or preserved.

  9. Also called culture mediumBacteriology. a liquid or solidified nutrient material suitable for the cultivation of microorganisms.

  10. a person through whom the spirits of the dead are alleged to be able to contact the living.

  11. Fine Arts.

    1. Painting. a liquid with which pigments are mixed.

    2. the material or technique with which an artist works.

      the medium of watercolor.

  12. a size of printing paper, 18½ × 23½ inches (47 × 60 centimeters) in England, 18 × 23 to 19 × 25 inches (46 × 58 to 48 × 64 centimeters) in America.

  13. Chiefly British. a size of drawing or writing paper, 17½ × 22 inches (44 × 56 centimeters).

  14. Also called medium stripMidland U.S. median strip.

  15. Movies, Television. in medium, with the principal actors in the middle distance.

    The scene was shot in medium.


adjective

  1. about halfway between extremes, as of degree, amount, quality, position, or size.

    Cook over medium heat. He is of medium height.

    Synonyms:
    middling, mean, average
medium British  
/ ˈmiːdɪəm /

adjective

  1. midway between extremes; average

    a medium size

  2. (of a colour) reflecting or transmitting a moderate amount of light Compare light 1 dark

    a medium red

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. an intermediate or middle state, degree, or condition; mean

    the happy medium

  2. an intervening substance or agency for transmitting or producing an effect; vehicle

    air is a medium for sound

  3. a means or agency for communicating or diffusing information, news, etc, to the public

    television is a powerful medium

  4. a person supposedly used as a spiritual intermediary between the dead and the living

  5. the substance in which specimens of animals and plants are preserved or displayed

  6. biology short for culture medium

  7. the substance or surroundings in which an organism naturally lives or grows

  8. art

    1. the category of a work of art, as determined by its materials and methods of production

      the medium of wood engraving

    2. the materials used in a work of art

  9. any solvent in which pigments are mixed and thinned

  10. any one of various sizes of writing or printing paper, esp 18 1/ 2 by 23 1/ 2 inches or 17 1/ 2 by 22 inches ( small medium )

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
medium Scientific  
/ mēdē-əm /
  • media
    plural
  1. A substance, such as agar, in which bacteria or other microorganisms are grown for scientific purposes.

  2. A substance that makes possible the transfer of energy from one location to another, especially through waves. For example, matter of sufficient density can be a medium for sound waves, which transfer mechanical energy.

  3. See more at wave


medium Idioms  

Usage

See media 1.

Other Word Forms

Noun Inflected Forms

Etymology

Origin of medium

First recorded in 1575–85; from Latin: “the middle,” noun use of neuter of medius “middle”; see mid 1

Explanation

Think of the word medium as something in between. In clothing, we have small, medium, and large; in communications, it's what signals travel through from broadcast to receiver; and in spiritual terms, it’s a person who converses with the dead. The word medium — from the Latin adjective medius, "middle" — has several meanings that all center on the idea of being in between. From the air that carries the broadcast signal, to the person who transmits messages from the dead, to the measurement of the "doneness" of your steak, medium means something that lies between two other points, people, or levels.

Keep Reading on Vocabulary.com

Vocabulary lists containing medium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Lightly coat the bottom of a skillet with olive oil and set it over medium heat.

From Salon Aug. 16, 2026

Ultimately, in the medium to long term, “these condos will bounce back,” Levitch said.

From MarketWatch Aug. 12, 2026

Hardware is an adornment that exists comfortably in both the low and high, because it forces any medium to meet it where it’s at.

From Los Angeles Times Aug. 12, 2026

Modi, a keen user of X, has turned to Instagram -- issuing his first vertical videos to tap into the youth medium of choice.

From Barron's Aug. 8, 2026

A baby girl medium, sucking on candy, seemed to drift about the room seated in her high chair.

From "American Spirits" by Barb Rosenstock

“It felt like I got to honor the film and the Broadway show, and the mixed media of both worlds,” Scott said.

From Los Angeles Times Aug. 17, 2026

He has filed meritless lawsuits against media companies and social media platforms and extorted large monetary settlements.

From Slate Aug. 17, 2026

Arday - who became the university's youngest black professor when appointed in 2023 - had faced weeks of media coverage over plagiarism allegations and questions about his achievements.

From BBC Aug. 17, 2026

On Saturday, Trump posted on social media a photo of Kim and himself during a 2019 meeting at the inter-Korean border.

From The Wall Street Journal Aug. 17, 2026

With her younger sisters back in control, and sure of the support of Cleveland’s news media, Leah sued Chauncey Burr for slander based on the content of his lectures.

From "American Spirits" by Barb Rosenstock

On the race runs, the picture for McLaren looked less positive - Norris was not competitive with Antonelli when both were using the soft tyres, nor Piastri with Russell on the mediums.

From BBC Jun. 12, 2026

Wendell Pierce, who has established himself as a formidable actor across various mediums, plays Othello.

From The Wall Street Journal Jun. 1, 2026

As he continues to dive into different mediums, Cudi says the mission remains the same: to continue evolving, challenging himself artistically and inspiring people along the way.

From Los Angeles Times Apr. 1, 2026

Having already experienced how reality TV and social media can lead to global success, Cameron noted that Serhant’s masterful use of both mediums was another huge draw to his company.

From MarketWatch Apr. 1, 2026

There were singing mediums, who warbled tunes composed by the spirits, and dancing mediums, who moved in a “very eccentric” manner.

From "American Spirits" by Barb Rosenstock

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