heliotaxis

n. [生]向日性, 背日性

释义与例句

n.
  1. 1.

    Phototaxis related to the sun.

    Movement of an organism toward sunlight; positive heliotaxis.

    不可数 生物
  2. 2.

    Phototaxis related to the sun.

    Movement of an organism away from sunlight; negative heliotaxis.

    不可数 生物

词源

From helio- + taxis.

来源：wiktionary