中ごろ

(1)a point equidistant from the ends of a line or the extremities of a figure

(2)線の両端、あるいは図形の両端から等距離にある点

(3)time between the beginning and the end of a temporal period; "the middle of the war"; "rain during the middle of April"

(4)一時的な期間の初めと終わり間の時間

(1)