subderivative

n. [语]次派生词

词形变化

subderivatives 复数 subderivatives

释义与例句

n.
  1. 1.

    A word derived indirectly, from a derivative of another.

    语言学

    "Friendliness" is a subderivative: it is derived from "friendly", which comes from "friend".

  2. 2.

    A generalization of the notion of a derivative, defined as the slope of a line that either touches, or is everywhere below the line of a convex function.

    数学

词源

From sub- + derivative.

来源：wiktionary