British Dictionary definitions for capricorn tropic
Also called the Goat, Capricornus. the tenth sign of the zodiac, symbol ♑, having a cardinal earth classification and ruled by the planet Saturn. The sun is in this sign between about Dec 22 and Jan 19
a person born during the period when the sun is in this sign
zodiac sign, late Old English, from Latin Capricornus, literally "horned like a goat," from caper (genitive capri) "goat" (see cab) + cornu "horn" (see horn (n.)); a loan-translation of Greek Aigokheros, the name of the constellation. Extended 1894 to persons born under the sign.