slide rule

noun
|Updated on: 18 Jun 2018

Definition of slide rule

: a manual device used for calculation that consists in its simple form of a ruler and a movable middle piece which are graduated with similar logarithmic scales

Recent Examples of slide rule from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'slide rule.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of slide rule

1663

in the meaning defined above

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SLIDE RULE Defined for English Language Learners

slide rule

Definition of slide rule for English Language Learners

  • : an old-fashioned instrument that is like a ruler with a middle piece that slides back and forth and that is used to do calculations


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