noun
Refers to the exact middle or center of something, often in a spatial or positional sense.
円の正中に点を打つ。
Place a dot at the exact center of the circle.
noun
Used in contexts of fairness or lack of bias, often in formal or literary settings.
裁判官は正中の立場を保たなければならない。
A judge must maintain an impartial stance.
noun, noun or participle which takes 'suru', intransitive verb
Technical term in astronomy for the moment a celestial body crosses the meridian.
今夜、月が正中するのは午前零時です。
Tonight, the moon culminates at midnight.