noun, noun or participle which takes 'suru'
Rare literary or technical term for a piercing stimulus, either physical (stabbing) or figurative (mental/emotional stimulation). Modern Japanese more often uses 刺激 (しげき) for stimulation and 刺すこと or 突き刺し for stabbing.
古い医学書に「刺衝」という語が見られる。
The word 刺衝 can be found in old medical texts.
その詩は読者の心に刺衝を与える。
That poem gives a sharp stimulus to the reader's heart.