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/kjub rut/ Listen

noun

Cube n.

(Geom.) A regular solid body, with six equal square sides.

(Math.) The product obtained by taking a number or quantity three times as a factor; as, 4x4=16, and 16x4=64, the cube of 4.

Cube ore (Min.), pharmacosiderite. It commonly crystallizes in cubes of a green color.

Cube root. (Math.), the number or quantity which, multiplied into itself, and then into the product, produces the given cube; thus, 3 is the cube root of 27, for 3x3x3 = 27.

Cube spar (Min.), anhydrite; anhydrous calcium sulphate.

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Etymology of 'Cube root'

Collaborative International Dictionary of English 0.48

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"Cube root" Quotes from Famous Books

... conceivable and intelligible, than that which affirms it to be. The case is different with the sciences, properly so called. Every proposition, which is not true, is there confused and unintelligible. That the cube root of 64 is equal to the half of 10, is a false proposition, and can never be distinctly conceived. But that Caesar, or the angel Gabriel, or any being never existed, may be a false proposition, but still is perfectly ...

— An Enquiry Concerning Human Understanding • David Hume et al

... said. "I think I understand cube root pretty well now. It was a good idea working by myself. When I left school I had only got through fractions. That's seventy-five pages back and I understand all that I have tried since. I won't be satisfied till I have gone to the end ...

— Robert Coverdale's Struggle - Or, On The Wave Of Success • Horatio, Jr. Alger

... must have been great fun—once. Nowadays one would as lief be a Strasburg goose. When you and I went to school it was not quite so bad. True, neither of us could now extract a cube root with a stump puller, and it is sad to reflect how little call life has made for duodecimals. Sometimes it seems that all our struggle with moody verbs and insubordinate conjunctions was a wicked waste—poor little sleepy ...

— The Desire of the Moth; and The Come On • Eugene Manlove Rhodes

... cubic number and a cube root. Mark off the places in threes. Find the first digit; treble it and place it under the next but one, and multiply by the digit. Then find the second digit. Multiply the first triplate and the second digit, twice by this digit. ...

— The Earliest Arithmetics in English • Anonymous

... limited to relating irrational elements. Mathematics is the only perfect science, inasmuch as it adds, subtracts, multiplies, and divides numbers, but not real and substantial things, inasmuch as it is the most formal of the sciences. Who can extract the cube root of an ash-tree? ...

— Tragic Sense Of Life • Miguel de Unamuno