prefix

(noun)

That which is prefixed; especially one or more letters or syllables added to the beginning of a word to modify its meaning; as, pre- in prefix, con- in conjure.

Examples of prefix in the following topics:

  • Prefixes and Other Systems of Units

    • SI prefixes precede a basic unit of measure to indicate a multiple or fraction of the unit.
    • A metric prefix, or SI prefix, is a unit prefix that precedes a basic unit of measure to indicate a multiple or fraction of the unit.
    • Each prefix has a unique symbol that is prepended to the unit symbol.
    • Because multiple prefixes may not be used, in the case of the kilogram the prefix names are used with the unit name "gram" and the prefix symbols are used with the unit symbol "g. " With this exception, any SI prefix may be used with any SI unit, including the degree Celsius and its symbol °C.
    • Apply prefixes to units and distinguish between SI and customary units

  • Decibels

    • The word decibell comes from the prefix, deci, that is 1/10 of the word it precedes For more information on how to convert units, refer to the unit conversion atom.

  • Microwaves

    • The prefix "micro-" in "microwave" is not meant to suggest a wavelength in the micrometer range.