Gemini

[jem-uh-nahy, -nee] /ˈdʒɛm əˌnaɪ, -ni/

plural noun, genitive Geminorum
[jem-uh-nawr-uh m, -nohr-] /ˌdʒɛm əˈnɔr əm, -ˈnoʊr-/ (Show IPA), for 1.
1.
Astronomy. the Twins, a zodiacal constellation between Taurus and Cancer containing the bright stars Castor and Pollux.
2.
Astrology.

3.
a two-person U.S. spacecraft designed for orbital rendezvous and docking: used in 1965–66 in various experiments preparatory to a landing on the moon.
/ˈdʒɛmɪˌnaɪ; -ˌniː/
noun (Latin genitive) Geminorum (ˌdʒɛmɪˈnɔːrəm)
1.
(astronomy) a zodiacal constellation in the N hemisphere lying between Taurus and Cancer on the ecliptic and containing the stars Castor and Pollux
2.
(classical myth) another name for Castor and Pollux
3.
(astronautics) any of a series of manned US spacecraft launched between the Mercury and Apollo projects to improve orbital rendezvous and docking techniques
4.
(astrology)

adjective
5.
(astrology) born under or characteristic of Gemini

constellation, late Old English, from Latin gemini (plural of adjective geminus) “twins” (see geminate). The twins are Castor and Pollux. Meaning “a person born under the sign of Gemini” is recorded from 1894. As an oath, from 1660s (also found in Dutch and German), perhaps a corruption of Jesu (cf. jiminy).
Gemini
(jěm’ə-nī’)
A constellation in the Northern Hemisphere near Cancer and Auriga. Gemini (the Twins) contains the bright stars Pollux and Castor and is the third sign of the zodiac.