protyl

n. [化]玄质,始质(假想中构成元素的原质)

词形变化

protyls 复数 protyls

释义与例句

n.
  1. 1.

    Alternative form of protyle.

    可数 不可数

    Two principles are postulated, according to which the elements have probably been evolved: (1) the ontogenic principle, involving the formation of the primary members of the different groups by direct condensation of protyl; (2) the phytogenetic principle, by which the higher members of the groups are developed from the lower by a process of integration.