臼きゅう砲ほうきゅうほうMeanings1nounmortar (weapon)A short, large-caliber cannon used for firing shells at high angles. This is a technical military term.臼きゅう砲ほうは高たかい角かく度どで砲ほう弾だんを発はっ射しゃする。A mortar fires shells at a high angle.
