new blood

Idioms

Additional, fresh individuals regarded as an invigorating force, as in an organization. For example, The board could really use some new blood next year. This metaphoric expression, first recorded in 1853, alludes to a blood transfusion and employs new in the sense of “fresh.”

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.

Peptide drugs, on the other hand, are manufactured to last longer in the body to create a therapeutic response, such as controlling appetite or promoting the growth of new blood vessels, bone density or muscle.

From Salon • Apr. 4, 2026

Metformin also influences major cellular pathways such as AMPK, mTOR, and PI3K/AKT, which help regulate cell growth, cell death, and the formation of new blood vessels.

From Science Daily • Jan. 2, 2026

Nancy needs new blood, but he doesn't need to perform the major surgery that Postecoglou needed to perform.

From BBC • Dec. 12, 2025

It is legal immigrants who infuse new blood and energy into this land.

From The Wall Street Journal • Nov. 16, 2025

Strength and courage flow into my body like new blood.

From "Ophelia" by Lisa Klein

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023