gemini Meaning, Definition & Usage

  1. noun (astrology) a person who is born while the sun is in Gemini
    Twin.
  2. noun a zodiacal constellation in the northern hemisphere between Taurus and Cancer on the ecliptic
  3. noun the third sign of the zodiac; the sun is in this sign from about May 21 to June 20
    Twins; Gemini the Twins.

WordNet

Gem"i*ni noun plural
Etymology
L., twins, pl. of geminus; cf. Skr. jmi related as brother or sister.
Definitions
  1. (Astron.) A constellation of the zodiac, containing the two bright stars Castor and Pollux; also, the third sign of the zodiac, which the sun enters about May 20th.

Webster 1913