- any whelk of the genus Neptunea, especially N. decemcostata, common along the eastern coast of North America and having a shell with seven to ten raised reddish-brown spiral ridges on a pale beige or yellow background.
Origin of neptune
- the ancient Roman god of the sea, identified with the Greek god Poseidon.
- the sea or ocean: Neptune's mighty roar.
- Astronomy. the planet eighth in order from the sun, having an equatorial diameter of 30,200 miles (48,600 km), a mean distance from the sun of 2794.4 million miles (4497.1 million km), a period of revolution of 164.81 years, and two moons.
- a township in E New Jersey.
Examples from the Web for neptune
Lakes on Titan are full of methane, and the chemical is a major component of the giant planets Jupiter, Neptune, and so forth.Methane on Mars: Life or Just Gas?
Matthew R. Francis
December 17, 2014
For you, Saturn trining Neptune is a wake-up call to document ideas, first, and then punt them out into the universe.The Stars Predict Your Week
Starsky + Cox
October 29, 2011
Mercury squaring Neptune, later in the week, makes you hyper-realistic, if to a fault.
Mars opposing Neptune means your competitive edge can run amok when you should stop to smell the rose water.
But the opposition of Mars and Neptune indicates that the symptom is the cause.
Neptune took the ocean, Pluto the center of the earth, and Jupiter the skies.
But who is King Neptune, and where does this ocean god live, mother?
So Neptune called his followers, and in a flash they all disappeared into the depths of the sea.
We were introduced by our mutual friend, old Father Neptune.A Woman Intervenes
This saint became the Christian successor of Neptune, as the protector of seamen.Storyology
- the Roman god of the seaGreek counterpart: Poseidon
- the eighth planet from the sun, having fourteen known satellites, the largest being Triton and Nereid, and a faint planar system of rings or ring fragments. Mean distance from sun: 4497 million km; period of revolution around sun: 164.8 years; period of rotation: 14 to 16 hours; diameter and mass: 4.0 and 17.2 times that of earth respectively
Word Origin and History for neptune
late 14c., "god of the sea," from Latin Neptunus, son of Saturn, brother of Jupiter, the Roman god of the sea (later identified with Greek Poseidon), probably from PIE root *nebh- "cloud" (cf. Latin nebula "fog, mist, cloud;" see nebula), via a sense of "moist, wet." The planet so named was discovered by Galle in 1846. Until the identification of Pluto in 1930, it was the most distant planet known.
- The eighth planet from the Sun and the fourth largest, with a diameter almost four times that of Earth. Neptune is a gas giant with a very active weather system, exhibiting extremely long and powerful storms with the fastest winds observed in the solar system. Neptune's axis is tilted 28.8° from the plane of its orbit, and its summer and winter seasons each last 40 years. For a period of 20 years out of every 248, Pluto's highly elliptical orbit crosses within that of Neptune. Neptune has four faint rings and 13 known moons and appears blue due to the absorption of red light by the methane within its atmosphere. See Table at solar system.
The Roman and Greek god who ruled the sea.
In astronomy, a major planet, the eighth planet from the sun. Neptune is named for the Roman god of the sea. Neptune is similar in size and composition to Uranus. It is usually visible only through a telescope and was discovered in the 1840s. For a period ending in 1999, Pluto's orbit took it inside the orbit of neptune. (See solar system; see under “Mythology and Folklore.”)