noun, noun or participle which takes 'suru', transitive verb
hot pursuit; hot chase
Used for intense, determined chasing, often in police, military, or competitive contexts. Can be used as a noun or with する as a transitive verb.
警察は逃走車を猛追した。
The police were in hot pursuit of the fleeing car.
首位チームを猛追する。
They are hotly chasing the first-place team.
追跡 is a general term for tracking or pursuit, while 猛追 emphasizes the intensity and speed of the chase.
Compound of 猛 (もう, fierce) and 追 (つい, chase). The exact historical derivation is uncertain, but the kanji combination directly conveys the meaning of a fierce pursuit.