young blood
Americannoun
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youthful people.
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fresh new ideas, practices, etc.; vigor.
noun
Etymology
Origin of young blood
First recorded in 1620–30
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.
Longevity is something that we can best achieve not as individuals taking supplements and getting transfusions of young blood, but by collectively engaging in and contributing via tax dollars to practices that promote everyone’s well-being.
From Slate • Aug. 7, 2025
Further investigation identified seven transcription factor genes that strongly influence whether leukemia cells looked like old or young blood cells.
From Science Daily • Dec. 5, 2024
"I just hope that America finds some really young blood," he says.
From BBC • Oct. 25, 2023
Most of the science behind young blood transfusion is bunk — that much is true, according to the Food and Drug Administration.
From Salon • Aug. 27, 2023
“Gonadal hormones, transfusion of young blood, magnesium salts . . .” “And do remember that a gramme is better than a damn.”
From "Brave New World" by Aldous Huxley
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.