下か降こう気き流りゅうかこうきりゅうじ字FuriganaMeanings1noundowndraft; downward air currentMeteorological term for a descending column of air, often associated with thunderstorms and microbursts.See also: ダウンバースト下か降こう気き流りゅうが激はげしい雷らい雨うを引ひき起おこすこと