Alexander's band

短语

词形变化

Alexander's bands 复数 Alexander's bands

别名

Alexander's dark band

释义与例句

n.
  1. 1.

    The area of unlit sky between two rainbows, caused by the deviation angles of the primary and secondary rainbows.

词源

Named after Alexander of Aphrodisias, who first described it in 200 AD.

来源：wiktionary