Pronunciation: (sang'gwin), [key]
1. cheerfully optimistic, hopeful, or confident: a sanguine disposition; sanguine expectations.
2. reddish; ruddy: a sanguine complexion.
3. (in old physiology) having blood as the predominating humor and consequently being ruddy-faced, cheerful, etc.
4. bloody; sanguinary.
5. blood-red; red.
6. Heraldry.a reddish-purple tincture.
a red iron-oxide crayon used in making drawings.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.