Jū'pi-ter, n.

n. [Lat., from Jovis pater. See Jove.]

1. (Rom. Myth.) The supreme deity; the son of Saturn; Jove.
2. (Astron.) One of the planets, the largest, and, next to Venus, the brightest, in diameter about 92,000 miles, and revolving round the sun in 4332.5848 days, at the mean distance of 5.202767, that of the earth being unity.