Definition

Noun: A small, portable electronic device used for performing mathematical calculations. It is designed to be held in one hand or carried in a pocket.

Usage

The term "hand calculator" specifically describes the physical, portable nature of the device. It is used to distinguish from larger, non-portable calculating machines or software calculators on computers and phones. * Before the exam, the teacher reminded students to bring a hand calculator. * He pulled a hand calculator from his pocket to quickly figure the tip.

Advanced Usage

• Historical Context: The term was more common in the late 20th century when portable electronic calculators first became widely available, distinguishing them from mechanical adding machines or slide rules.
  • The introduction of the affordable hand calculator in the 1970s revolutionized classrooms and offices.

Variants and Related Words

• Calculator (n): The more common and general term for any device that performs calculations. A "hand calculator" is a type of calculator.
  • Most smartphones have a built-in calculator app.
• Pocket calculator (n): A direct synonym for "hand calculator," emphasizing its portability.
  • He always keeps a pocket calculator in his briefcase.

Synonyms

• Pocket calculator
• Portable calculator

Antonyms

• Desktop calculator (a larger, non-portable calculating machine)
• Adding machine (a mechanical or electronic device, often not hand-held)

Related Phrases/Compounds

• Solar-powered calculator: A hand calculator that uses solar cells for power.
  • The solar-powered calculator never needs batteries.
• Graphing calculator: An advanced type of hand-held calculator capable of plotting graphs and solving complex equations.
  • The engineering course requires a specific model of graphing calculator.

Noun

1. a calculator small enough to hold in the hand or carry in a pocket