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buffy coat

American  

noun

Biochemistry.
  1. a yellowish-white layer consisting of leukocytes that, upon centrifugation of blood, covers the red blood cells.


Etymology

Origin of buffy coat

First recorded in 1790–1800

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.

This layer is referred to as the buffy coat because of its color; it normally constitutes less than 1 percent of a blood sample.

From Textbooks • Jun. 19, 2013

True or false: The buffy coat is the portion of a blood sample that is made up of its proteins.

From Textbooks • Jun. 19, 2013

It floats at the top of the tube separated from the heaviest elements, the erythrocytes, by a buffy coat of leukocytes and platelets.

From Textbooks • Jun. 19, 2013

Above the buffy coat is the blood plasma, normally a pale, straw- colored fluid, which constitutes the remainder of the sample.

From Textbooks • Jun. 19, 2013

The white corpuscles become entangled in the upper portion of clot, giving it a pale yellow look on the top, known as the buffy coat.

From A Practical Physiology by Blaisdell, Albert F.