by blood

idiom

: by a relationship that connects two people through their natural parents, grandparents, etc.

My aunt and I are related by blood.

Examples of by blood in a Sentence

Recent Examples on the Web

Letby was also convicted of trying to kill two babies by injecting them with synthetic insulin, a theory that was buoyed by blood tests showing drops in blood sugar for the two infants, both of whom survived. —Liam Quinn, Peoplemag, 14 July 2024

Following a loud noise that made her ears ring, the mother got up and found the boy lying on the couch surrounded by blood and a firearm by his face, the agency detailed. —Jose R. Gonzalez, The Arizona Republic, 10 July 2024

The black and reddish bones (stained by blood, experts say) of a man believed to be between 40 and 45 years old were found just steps away from the shoreline. —Rachel Treisman, NPR, 22 June 2024

Decades later, testing during the appeal process showed the stains weren’t made by blood, but some inorganic substance. —Edmund H. Mahony, Hartford Courant, 21 June 2024