Last modified on 26 May 2014, at 18:48

subderivative

EnglishEdit

EtymologyEdit

sub- +‎ derivative

NounEdit

subderivative (plural subderivatives)

  1. (linguistics) A word derived indirectly from a derivative of another
    "Friendliness" is a subderivative: it is derived from "friendly", which comes from "friend".
  2. (mathematics) The slope of a line that either touches, or is below the line of a convex function