Word of the Day

A new word of the day appears every day of the year on the front page of Almanac.com. Below is the definition of today's word, followed by words from the last week (in case you miss a day!).

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Word of the Day

Celestial sphere

An imaginary sphere projected into space that represents the entire sky, with an observer on Earth at its center. All celestial bodies other than Earth are imagined as being on its inside surface.

Last Seven Days of Words

Sunday, May 11, 2008

Bilge [DEFINITION]

Saturday, May 10, 2008

Equinox [DEFINITION]

Friday, May 9, 2008

Stratus cloud [DEFINITION]

Thursday, May 8, 2008

Ember Days [DEFINITION]

Wednesday, May 7, 2008

Growing season [DEFINITION]

Tuesday, May 6, 2008

Sun Fast/Slow [DEFINITION]

Monday, May 5, 2008

Evaporimeter [DEFINITION]