Word of the Day

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Precession

The slowly changing position of the stars and equinoxes in the sky resulting from variations in the orientation of Earth’s axis.

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Precession

The slowly changing position of the stars and equinoxes in the sky resulting from variations in the orientation of Earth’s axis.

Nipper

A fore tooth of a horse. The nippers are four in number.

Altostratus cloud

Grayish or bluish layer of clouds that can obscure the Sun.

Aphelion

The point in a planet’s orbit that is farthest from the Sun.

Rupophobia

Fear of dirt

Wisconsin

Wisconsin was probably named from a Chippewa word that means "river of red stone" or "river of the great rock."

Span

9 inches; derived from the distance between the end of the thumb and the end of the little finger when both are outstretched.

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