凝固 nínggù HSK7 solidify Origin Definitions Defs Strokes Stroke Words Sentences Sents 凝固剂 nínggùjì coagulant a substance added to a liquid to cause it to solidify or thicken凝固点 nínggùdiǎn freezing point 凝固汽油弹 nínggùqìyóudàn napalm napalm bomb