Blue blood

n.	1.	a member of the nobility or aristocracy, or a person of high social status.
	2.	the quality of status that qualifies one as a blue blood; - used metaphorically, as "They have blue blood in their veins.".

Noun

1.

blue blood - a member of the aristocracy Synonyms: aristocrat, patrician

Brahman, ancestry, archduke, aristocracy, aristocrat, aristocraticalness, armiger, baron, baronet, birth, blood, carnage, count, daimio, distinction, duke, earl, elite, esquire, flower, genteelness, gentility, gentleman, gentry, grand duke, grandee, hidalgo, honorable descent, lace-curtain, laird, landgrave, lord, lordling, magnate, magnifico, margrave, marquis, nobility, noble, noble birth, nobleman, nobleness, optimate, palsgrave, patrician, peer, quality, rank, royalty, seigneur, seignior, silk-stocking, society, squire, swell, thoroughbred, upper class, upper-cruster, viscount, waldgrave