ulmic

棕腐质的

释义与例句

adj.
  1. 1.

    Pertaining to ulmin; designating an acid obtained from ulmin.

    化学

    ulmic acid

    ulmic precipitate

    ulmic substance

词源

Formed from the root of Latin ulmus (“an elm”), with the suffix -ic: compare French ulmique.

来源：wiktionary