Sanguine

Sanguine can refer to:

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• Sanguine personality - optimistic, cheerful, even-tempered, confident, rational, popular, fun-loving; the temperament of blood. One of the four humours, the others being choleric, phlegmatic, and melancholic.
• Sanguine is a tincture in heraldry, otherwise one of the "staynard colours" (stains). It is a brownish red, the colour of blood.
• Sanguine was also an ELF antenna of the US Navy; see communication with submarines.
• Sanguine is a drawing done in reddish chalk, particularly an Old Master drawing.
• Sanguine is a red earth pigment used in the manufacture of artists chalks or pastels. First used by Renaissance artists. Still used by manufacturers such as Conté; to name reddish-brown chalks, coloured with Iron Oxide.