EQUA'TION, n. [L. oequatio, from oequo, to make equal or level.] 1. Literally, a making equal, or an equal division.2. In algebra, a proposition asserting the equality of two quantities, and expressed by the sign=between them; or an expression of the same quantity in two dissimilar terms, but of equal value, as 3s=36d, or x=b+m-r. In the latter case, x is equal to be added to m, with r subtracted, and the quantities on the right hand of the sign of equation are said to be the value of x on the left hand.3. In astronomy, the reduction of the apparent time or motion of the sun to equable, mean or true time.4. The reduction of any extremes to a mean proportion. |
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In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 
