We found one dictionary that defines the word by blood:

General (1 matching dictionary)

1. by blood: Merriam-Webster

Phrases: Bonded by Blood, Brothers by Blood, not related by blood, related by blood, more... ▸ Words similar to by blood ▸ Usage examples for by blood ▸ Idioms related to by blood ▸ Wikipedia articles (New!) ▸ Words that often appear near by blood ▸ Rhymes of by blood ▸ Invented words related to by blood