plas·​ma | \ ˈplaz-mə How to pronounce plasma (audio) \

Definition of plasma

1 : a green faintly translucent quartz

2 [ New Latin, from Late Latin ]

a : the fluid part of blood, lymph, or milk as distinguished from suspended material especially : blood plasma
b : the juice that can be expressed from muscle
4 : a collection of charged particles (as in the atmospheres of stars or in a metal) containing about equal numbers of positive ions and electrons and exhibiting some properties of a gas but differing from a gas in being a good conductor of electricity and in being affected by a magnetic field
5 : a display (such as a television screen) consisting of discrete cells of plasma sandwiched between two layers of glass and electrodes such that each cell emits light when it receives an electric current

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Other Words from plasma

plasmatic \ plaz-​ˈma-​tik How to pronounce plasmatic (audio) \ adjective

Examples of plasma in a Sentence

the plasma that makes up a star Our new TV is a 50-inch plasma.

Recent Examples on the Web

Several businesses — including an appliance shop, an auto repair garage, a coffee shop and a plasma center — had windows broken by the pellets. Karen Kucher, San Diego Union-Tribune, "Windows of four businesses and one vehicle in College Area shattered by pellet gun," 8 July 2019 There was a the laptop streaming the draft onto a plasma television, even as his little brother spoiled the picks 30 seconds early from his iPhone. Anthony Fenech, Detroit Free Press, "Why the top high school player in Michigan went undrafted," 9 June 2019 The Louvre defended the choice by saying an aerial view of the work would be projected to the public by two plasma screens in the courtyard. Thomas Adamson, The Seattle Times, "Amid gripes, Louvre pyramid celebrates 30 years with collage," 30 Mar. 2019 Toward that end, Munoz required a platelet-rich plasma injection for a bothersome forearm that delayed the start of his 2018 campaign. San Diego Union-Tribune, "Minors: Padres prospect Andres Munoz rising almost as fast as his famed fastball," 20 June 2019 When someone donates blood, it is separated into different components, including plasma, platelets and red blood cells, said Dr. Dennis Williams, the Kentucky Blood Center's medical director. Morgan Watkins, The Courier-Journal, "U of L researchers develop freeze-dried blood that could save soldiers and astronauts," 12 June 2019 The matter of an accretion disk, which can consist of gas, plasma, dust, or anything in the vicinity of the black hole, becomes white hot due to their rapid movement. David Grossman, Popular Mechanics, "For the First Time, See the Mysterious Disks That Circle Black Holes," 10 June 2019 The effectiveness rate for platelet rich plasma treatments varies from patient to patient, but Zeichner says anecdotally his patients achieve about a 25 percent improvement and hair density. Lisa Fogarty, Harper's BAZAAR, "Biotin Is in Every Hair Growth Pill. But Does it Even Work?," 22 May 2019 Walker received a platelet-rich plasma injection in his shoulder, which will delay his return from major elbow surgery that was on track for midway through this season. Jose M. Romero, The Seattle Times, "Sandoval, Belt homer in Giants’ win over D’backs," 18 May 2019

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

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First Known Use of plasma

1517, in the meaning defined at sense 1

History and Etymology for plasma

German, from Late Latin, something molded, from Greek, from plassein to mold — more at plaster

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Dictionary Entries near plasma





plasma cell



Statistics for plasma

Last Updated

11 Jul 2019

Look-up Popularity

Time Traveler for plasma

The first known use of plasma was in 1517

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More Definitions for plasma



English Language Learners Definition of plasma

medical : the watery part of blood that contains blood cells
technical : a substance that is similar to a gas but that can carry electricity
: a type of visual display for computers, televisions, etc., that uses plasma with electrical charges between two sheets of glass and that produces pictures that are very clear and bright


plas·​ma | \ ˈplaz-mə How to pronounce plasma (audio) \

Kids Definition of plasma

: the watery part of blood, lymph, or milk


plas·​ma | \ ˈplaz-mə How to pronounce plasma (audio) \

Medical Definition of plasma

1a : the fluid part especially of blood, lymph, or milk that is distinguished from suspended material — see blood plasma
b : the juice that can be expressed from muscle
3 : a mixture of starch and gel used as an ointment base

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More from Merriam-Webster on plasma

Rhyming Dictionary: Words that rhyme with plasma

Spanish Central: Translation of plasma

Nglish: Translation of plasma for Spanish Speakers

Britannica English: Translation of plasma for Arabic Speakers Encyclopedia article about plasma

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