穿孔せんこう Noun Irregular Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb perforation;punching;boring;drilling Other forms せん孔 【せんこう】 (search-only kanji form)
穿孔テープせんこうテープ Noun English jmdict 1 noun (common) (futsuumeishi) computing punched tape;(perforated) paper tape