noun
straight punch; thrust punch
A fundamental karate technique: a straight punch delivered with the front two knuckles of a clenched fist, often from the hip.
基本稽古で正拳突きを繰り返し練習する。
We practice the straight punch repeatedly in basic training.
正拳突きは腰の回転を使って打つ。
The straight punch is delivered using hip rotation.
Backfist strike; uses the back of the fist, contrasting with the front-knuckle strike of 正拳突き.
Compound of 正拳 (seiken, 'forefist' or 'proper fist') and 突き (tsuki, 'thrust' or 'punch'). The term is specific to karate and other Japanese striking arts.