semidiurnal

a. 半天的, 一天两次的

释义与例句

adj.
  1. 1.

    Twice daily (usually of tides).

  2. 2.

    Accomplished in half a day.

  3. 3.

    Flying in twilight.

    生物 动物学

词源

From semi- + diurnal.

来源：wiktionary