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blood plasma

American  

noun

  1. the plasma or liquid portion of human blood.


blood plasma British  

noun

  1. the pale yellow fluid portion of the blood; blood from which red and white blood cells and platelets have been removed

  2. a sterilized preparation of this fluid for use in transfusions

"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

blood plasma Scientific  
  1. The clear, liquid part of the blood, composed mainly of water and proteins, in which the blood cells are suspended. The blood plasma of mammals also contains platelets.


Etymology

Origin of blood plasma

First recorded in 1905–10

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:

When the team grew cells in a medium that more closely resembles human blood plasma, LNP uptake dropped sharply by 50 to 80 percent.

From Science Daily Apr. 20, 2026

Some longevity influencers attract rubbernecking for their quixotic quests to live forever, epitomized by venture capitalist Bryan Johnson’s vampiric infusions of his teenage son’s blood plasma.

From Slate Feb. 26, 2026

During the pandemic-payment pause, Villarreal started donating blood plasma, which brought in an extra $200 a week.

From The Wall Street Journal Oct. 22, 2025

A patient from Telford who needed a lifesaving treatment developed from blood plasma has thanked donors.

From BBC Mar. 6, 2025

It builds body proteins, including some essential elements of blood plasma concerned with blood-clotting.

From "Silent Spring" by Rachel Carson

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