Meaning of the word "slide rule" in English

What does "slide rule" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

slide rule

US /ˈslaɪd ruːl/
UK /ˈslaɪd ruːl/
"slide rule" picture

Noun

1.

a mechanical analog computer, now largely obsolete, used primarily for multiplication and division, and for functions such as roots, logarithms, and trigonometry. It is constructed with a fixed rule and a sliding central piece, both marked with logarithmic scales.

Example:
Before electronic calculators, engineers relied on a slide rule for complex calculations.
Learning to use a slide rule required understanding logarithms.
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