calculators

Noun

calculator (plural calculators)

1. A mechanical or electronic device that performs mathematical calculations; (now usually) an electronic one specifically.
   • electronic calculator; pocket calculator

   Synonyms:

   electronic calculator

2. (historical) A person who performs mathematical calculation.
   • During the war, his grandmother had worked at the Bletchley Park decoding station as a calculator.

   Synonyms:

   computer, reckoner

3. A person who calculates (in the sense of scheming).
   • Near-synonyms: schemer, plotter; manipulator

   Synonyms:

   schemer, plotter, manipulator

4. (obsolete) A set of mathematical tables.

   Synonyms:

   ready reckoner