掘削くっさく Common Noun Irregular Transitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb digging out;excavation Other forms 掘鑿 【くっさく】 (rarely used kanji form) · 掘さく 【くっさく】 (search-only kanji form)