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

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

Other studies have looked at blood plasma, which is not specific to the tissues affected by the disease.

From Science Daily • Nov. 14, 2024

It was named after Charles R. Drew, a distinguished surgeon and former chair of surgery at Howard University whose work focused on blood banking and blood plasma storage and transfusion.

From Los Angeles Times • Aug. 7, 2024

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

From "Silent Spring" by Rachel Carson