桜さくら前ぜん線せん

noun

cherry blossom front

A meteorological term for the line connecting points where cherry blossoms are expected to open on the same date, used in spring forecasts.

• 今年ことしの桜さくら前ぜん線せんは平へい年ねんより早はやく北ほく上じょうしている。

  This year's cherry blossom front is moving north earlier than usual.