WordReference Random House Unabridged Dictionary of American English © 2025
add′ing machine′,
- Computinga machine capable of adding numbers and sometimes capable of performing the other arithmetic functions of subtraction, multiplication, and division: such machines are now obsolescent, having been replaced in most applications by electronic calculators.
- 1870–75, American.
'adding machine' also found in these entries (note: many are not synonyms or translations):