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blue blood

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blue blood

 

1. Fig. the blood [heredity] of a noble family; aristocratic ancestry. The earl refuses to allow anyone who is not of blue blood to marry his son. Although Mary's family is poor, she has blue blood in her veins.

2. Fig. a person of aristocratic or wealthy ancestry. Because his great-grandparents made millions, he is regarded as one of the city's blue bloods.

See also: blood, blue

blue blood

someone who has blue blood is from a family of the highest social class He has a fair bit of blue blood coursing through his veins.

See also: blood, blue