blood plasma

American  

noun

1. the plasma or liquid portion of human blood.

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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

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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.

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Etymology

Origin of blood plasma

First recorded in 1905–10

Example Sentences

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

In 2005, he had the world record for most blood plasma donated - a title he held until 2022 when he was overtaken by a man in the US.

From BBC • Mar. 2, 2025

Slavin was only the first of many who have since turned their bodies into businesses, including nearly two million Americans who currently sell their blood plasma, many of them on a regular basis.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot