decimal

/'desiməl/
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decimal

The teacher writes a decimal on the whiteboard.

Definition

  1. Adjective:

    • Relating to or based on the number ten: Describes a system of numbers or counting that uses ten as its base.
    • Involving tenths or powers of ten: Pertaining to numbers expressed in a system using a decimal point to separate whole numbers from fractional parts.

  2. Noun:

    • A number expressed in the decimal system: Any number written using the base-ten system, especially one that includes a decimal point.
    • A decimal fraction: A proper fraction whose denominator is a power of ten (like 10, 100, 1000), typically written using a decimal point.
Examples of Usage

  • Adjective:

    • Most countries use a decimal currency system.
    • The metric system is a decimal system of measurement.

  • Noun:

    • The number 3.14 is a decimal.
    • Convert the fraction 1/4 to a decimal (0.25).
Advanced Usage
  • "to three decimal places": specifying the precision of a number after the decimal point.
    • Calculate the result to three decimal places.
  • "recurring decimal" (or "repeating decimal"): a decimal fraction in which a digit or group of digits repeats infinitely.
    • One third is expressed as 0.333..., which is a recurring decimal.
Variants and Related Words
  • Decimalize (verb): to convert into a decimal system.
    • The country decided to decimalize its currency.
  • Decimalization (noun): the process of converting to a decimal system.
  • Decimal point (noun): the dot used to separate the whole number part from the fractional part in a decimal number (e.g., the dot in 5.7).
Synonyms
  • Base-ten: (Adjective) Referring to the numerical system with ten as its base.
  • Denary: (Adjective) A less common synonym meaning relating to ten; decimal.
Related Phrases
  • Go decimal: (Phrase) To adopt a decimal system.
    • The UK went decimal in 1971.
  • Decimal notation: (Noun Phrase) The standard method of writing decimal numbers.
    • The value is written in decimal notation.
decimal

The teacher writes a decimal on the whiteboard.

Adjective
  1. numbered or proceeding by tens; based on ten
    • the decimal system
Noun
  1. a number in the decimal system
  2. a proper fraction whose denominator is a power of 10

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