[ɪkwˈe͡ɪʒən], [ɪkwˈeɪʒən], [ɪ_k_w_ˈeɪ_ʒ_ə_n]
Definitions of equation

a state of being essentially equal or equivalent; equally balanced; " on a par with the best"

the act of regarding as equal

a mathematical statement that two expressions are equal

A making equal; equal division; equality; equilibrium.

A quantity to be applied in computing the mean place or other element of a celestial body; that is, any one of the several quantities to be added to, or taken from, its position as calculated on the hypothesis of a mean uniform motion, in order to find its true position as resulting from its actual and unequal motion.

A proposition expressing the equality of two quantities; the act of making, or the state of being made, equal.

Equality; a statement expressing the equality of two things.

( alg.) A statement of the equality of two quantities: reduction to a mean proportion.

Expression of the equality of two quantities.

A proposition expressing the equality of two quantities.

A making equal, or an equal division; 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. Equation of time, the interval by which apparent time differs from mean time Equation of light, allowance to be made in determining the position of a heavenly body for the time occupied in the transmission of its light to the eye of an observer. Equation of payments, the determination of the time when a debt should be paid in full that is payable only in parts at intervals.

A making equal; in alg., a proposition asserting the equality of two quantities, having the sign = ( equal to) placed between them.
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Usage examples for equation

Complete the equation, by using weights, and explain it. – An Introduction to Chemical Science by R.P. Williams

They work out these things in the personal equation largely. – The Land Of Little Rain by Mary Hunter Austin

" Though I thought it was more when I commenced the equation. – HappyThought Hall by F. C. Burnand

With me the personal equation always looms big, and of course he was quite right in saying that it's likely to get you all gummed up. – The MillionDollar Suitcase by Alice MacGowan Perry Newberry

Indeed, the equation of income and expenditure was offering new and constantly accumulating difficulties to Mr. and Mrs. Barton; for shortly after the birth of little Walter, Milly's aunt, who had lived with her ever since her marriage, had withdrawn herself, her furniture, and her yearly income, to the household of another niece; prompted to that step, very probably, by a slight 'tiff' with the Rev. – Scenes of Clerical Life by George Eliot

I may, then, properly dismiss the chemical, as I have done the electrical, influences of the forest, and treat them both alike, if not as unimportant agencies, at least as quantities of unknown value in our meteorological equation. – The Earth as Modified by Human Action by George P. Marsh

With the beauty of the trees, the grass, the flowers, the vines, and all things natural, it possessed the added attractiveness of a certain personal equation. – The Girl at Cobhurst by Frank Richard Stockton

Difference between apparent and mean time or mean and apparent time Equation of Time. – Lectures in Navigation by Ernest Gallaudet Draper

That is what he said aloud; to himself he always said a bit of a prayer, realising perhaps even more than the bridge how little man's wits count in the great equation. – Love Stories by Mary Roberts Rinehart

Just as in scientific observation there is a personal equation, so in the conduct of life there is a personal limitation. – The Eulogy of Richard Jefferies by Walter Besant

It came as all truth does, through a clouded and unclean medium: and any judgment of the story itself must be based upon a knowledge of the personal equation of the Ruin who told it. – Adventures In Contentment by David Grayson AKA: Ray Stannard Baker

It must be the physician's business to find out in each individual case, according to his own personal equation, just how he may be able to use at least some of it. – Psychotherapy by James J. Walsh

However we distribute the indictment and the charges among the various parties concerned, whether we accuse mainly the sway of Prussian Militarism or the rise of German Commercialism, or the long tradition and growth of a Welt politik philosophy, or the general political ignorance which gave to these influences such rash and uncritical acceptance; or whether we accuse the somewhat difficult and variable personal equation of the Kaiser himself the fact still remains that for years and years this war has been by the German Government most deliberately and systematically prepared for. – The Healing of Nations and the Hidden Sources of Their Strife by Edward Carpenter

It was a bigger equation, a more complex one, but not different in kind. – Eight Keys to Eden by Mark Irvin Clifton

The concrete figures for the equation do not prove that. – The Value of Money by Benjamin M. Anderson, Jr.

No such equation of values, however, can hold the judgment in suspense in the case of the host of secondary errors that grew out of the indolence of Secretary Alger and his worship of politics. – The Path of Empire A Chronicle of the United States as a World Power, Volume 46 in The Chronicles of America Series by Carl Russell Fish

This chasing the Latin root, wrestling with the unknown equation, and all that sort of thing. – The Varmint by Owen Johnson F. R. Gruger

He takes into his regard the personal equation wherever possible, and does not separate the musician from the man: for, he says, the man and the musician in myself have always struggled to manifest themselves simultaneously.... – A Day with Robert Schumann by May Byron

Of course it is barely possible that they derived the equation themselves, but it must have taken weeks if they did. – The Romantic Analogue by W.W. Skupeldyckle

I left the cow and pail, took my paper, ran into the room, and solved the equation. – Pictures of German Life in the XVIIIth and XIXth Centuries, Vol. II. by Gustav Freytag