1 a constellation, traditionally regarded as contained in the figure of a goat's horns.
2 a the tenth sign of the zodiac (the Goat). b a person born when the sun is in this sign.
Derivatives:
Capricornian n. & adj.
Etymology: ME f. OF capricorne f. L capricornus f. caper -pri goat + cornu horn
Useful english dictionary. 2012.