Gemini

jem′i-nī, n.pl. the twins, a constellation containing the two bright stars Castor and Pollux.— adj. Gem′inous ( bot. ), double, in pairs.— n. Gem′iny ( Shak. ), twins, a pair: used as a mild oath or interjection, from the common Latin oath O Gemini , or simply Gemini —spelt also geminy , gemony , jiminy . [L., pl. of geminus , twin-born.]