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
3
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
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
Astronomers have been aware of cosmic vampires, dead stars that hungrily strip plasma from victim stars, for some time.
—
Robert Lea, Space.com, 14 July 2025
The two projects used different approaches to contain superheated plasma–isotopes of hydrogen that are hotter than the Sun’s surface–for a relatively long period of time.
—Alex Knapp, Forbes.com, 4 July 2025
Community Blood Center of the Ozarks is the exclusive provider of blood, platelets and plasma for more than 40 area hospitals, including all Northwest Arkansas hospitals.
—Miceala Morano, Arkansas Online, 2 July 2025
The supplies were transported from Israel through the Kerem Shalom crossing point without any reported looting, and the blood and plasma were delivered to Nasser Hospital's cold storage facility for distribution to other medical centers, the organization and the hospital reported.
—Diaa Ostaz, ABC News, 28 June 2025
See All Example Sentences for plasma
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Robert Lea, Space.com, 14 July 2025
The two projects used different approaches to contain superheated plasma–isotopes of hydrogen that are hotter than the Sun’s surface–for a relatively long period of time.
—Alex Knapp, Forbes.com, 4 July 2025
Community Blood Center of the Ozarks is the exclusive provider of blood, platelets and plasma for more than 40 area hospitals, including all Northwest Arkansas hospitals.
—Miceala Morano, Arkansas Online, 2 July 2025
The supplies were transported from Israel through the Kerem Shalom crossing point without any reported looting, and the blood and plasma were delivered to Nasser Hospital's cold storage facility for distribution to other medical centers, the organization and the hospital reported.
—Diaa Ostaz, ABC News, 28 June 2025
See All Example Sentences for plasma
Cite this Entry
“Plasma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plasma. Accessed 21 Jul. 2025.
Copy CitationKids Definition
plasma
noun
plas·ma
ˈplaz-mə 
1
: the watery part of blood, lymph, or milk
2
: a collection of charged particles that shows some characteristics of a gas but that differs from a gas in being a good conductor of electricity and in being affected by a magnetic field
Medical Definition
plasma
noun
plas·ma
ˈplaz-mə
1
a
: 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
2
3
: a mixture of starch and gel used as an ointment base
Love words? Need even more definitions?
Merriam-Webster unabridged
Share