発はつ馬ば機きはつばきMeanings1nounstarting gate; starting stallshorse racingUsed in horse racing to refer to the mechanical gate from which horses start a race.発はつ馬ば機きが開ひらいて、一いっ斉せいに馬うまが飛とび出だした。The starting gate opened and the horses burst out all at once.
