Oroshi Hiraken Uchi is a technique in Kyokushin karate. It translates to 'Downward Ridge Hand Strike.' This technique involves delivering a downward striking motion with the ridge hand, typically targeting the opponent's head or collarbone. The term 'Oroshi' means downward, 'Hiraken' indicates the ridge hand, and 'Uchi' refers to the striking motion. It is often used to capitalize on openings created by the opponent's movements and deliver a powerful blow from above.