adding machine
/ædɪŋ ˈmɪʃɪn/ · ad.ding.ma.chine
noun
- A mechanical or electronic device used for performing arithmetic calculations, especially addition. The accountant used an adding machine to quickly tally the sales figures.
- A device or system that adds data or values to a total or sum. The adding machine in the checkout lane at the grocery store helped the cashier process the purchase efficiently.
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Did you know? The first mechanical adding machine was invented by German mathematician and inventor Wilhelm Schickard in 1623, but it was not until the late 19th century that adding machines became widely used in business and commerce.