blood plasma

noun

: the pale yellow fluid of whole blood that consists of water and its dissolved constituents including especially proteins (such as albumin, fibrinogen, and globulins)

Examples of blood plasma in a Sentence

Recent Examples on the Web

Astronauts start to urinate more, losing about 10–15% of their blood plasma within days. —Kaif Shaikh, Interesting Engineering, 16 Oct. 2025

Roche’s Elecsys pTau181 test works by measuring the protein pTau181 in blood plasma; higher levels of this protein are associated with Alzheimer’s disease and other neurodegenerative diseases. —Jacqueline Howard, CNN Money, 13 Oct. 2025

However, some products utilize exosomes derived from animal blood plasma. —Victoria Moorhouse, Allure, 1 Oct. 2025

One is made from human blood plasma that has been screened and treated. —Health, 21 Sep. 2025

Word History

First Known Use

1842, in the meaning defined above

Rhymes for blood plasma

• chiasma
• miasma
• asthma
• histoplasma
• mycoplasma
• toxoplasma

Kids Definition

blood plasma

noun

: the fluid portion of whole blood

Medical Definition

blood plasma

noun

: the pale yellow fluid portion of whole blood that consists of water and its dissolved constituents including proteins (as albumin, fibrinogen, and globulins), electrolytes (as sodium and chloride), sugars (as glucose), lipids (as cholesterol and triglycerides), metabolic waste products (as urea), amino acids, hormones, and vitamins compare serum entry 1 sense a(1)