Slide rule Slide" rule`, n. a thin, flat calculating device consisting of a fixed outer piece and a movable middle piece. Both pieces are graduated in such a way (as, by a logarithmic scale) that multiplication, division, and other mathematical functions of an input variable may be rapidly determined by movement of the middle pieces to a location on one scale corresponding to the input value, and reading off the result on another scale. A movable window with a hairline assists in alignment of the scales. This device has been largely superseded by the electronic calculator, which has a greater precision than the slide rule. Also called colloquially {slipstick}. [PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • slipstick — n. a slide rule. □ Who carries a slipstick these days? □ Who even knows what a slipstick is these days? …   Dictionary of American slang and colloquial expressions

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  • slipstick — noun A slide rule …   Wiktionary

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