calculator

Noun
  1. An expert at calculation (or at operating calculating machines) (synset 109906486)
    is a type of: expert - a person with special knowledge or ability who performs skillfully
    subtypes:
    • adder - a person who adds numbers
    • number cruncher - someone able to perform complex and lengthy calculations
    • actuary, statistician - someone versed in the collection and interpretation of numerical data (especially someone who uses statistics to calculate insurance premiums)
    • subtracter - a person who subtracts numbers
    same as: computer, estimator, figurer, reckoner
  2. A small machine that is used for mathematical calculations;
    Can be mechanical or electronic (synset 102942270)
    is a type of: machine - any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks
    subtypes:
    • abacus - a calculator that performs arithmetic functions by manually sliding counters on rods or in grooves
    • adder - a machine that adds numbers
    • adding machine, totaliser, totalizer - a calculator that performs simple arithmetic functions
    • counter, tabulator - a calculator that keeps a record of the number of times something happens
    • hand calculator, pocket calculator - a calculator small enough to hold in the hand or carry in a pocket
    • napier's bones, napier's rods - a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier
    • quipu - calculator consisting of a cord with attached cords; used by ancient Peruvians for calculating and keeping records
    • subtracter - a machine that subtracts numbers
    same as: calculating machine

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