subexpression

English

Etymology

Etymology tree
Proto-Indo-European *upó
Proto-Italic *supo
Latin sub
Latin sub-der.
English sub-
Proto-Indo-European *h₁éǵʰ
Proto-Indo-European *-s
Proto-Indo-European *h₁éǵʰs
Proto-Italic *eks
Latin ex
Latin ex-
Proto-Indo-European *per-?
Proto-Indo-European *pres-der.
Proto-Italic *pres-
Latin premō
Latin exprimō
Proto-Indo-European *-tós
Proto-Indo-European *-is
Proto-Indo-European *-tis
Proto-Indo-European *-Hō
Proto-Indo-European *-tiHō
Proto-Italic *-tiō
Latin -tiō
Late Latin expressiōder.
Middle French expressionbor.
English expression
English subexpression

    From sub- + expression.

    Noun

    subexpression (plural subexpressions)

    1. (mathematics, programming) An expression that is a part of a larger expression.
      • 2003, Rob Brooks-Bilson, Programming ColdFusion MX:
        The third part of the regular expression, \1, is the backreference and tells ColdFusion to refer back to the first subexpression […]
      • 2020 February 24, “Handling PowerShell's Versatile Subexpressions”, in Clear-Script‎[1], archived from the original on 11 July 2026:
        Something to note that's shared between all subexpressions (as well as scriptblocks) is that the end of a line does not terminate the subexpression.

    Holonyms

    Translations

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