貝殼 bèiké HSK7 shell Origin Definitions Defs Strokes Stroke Words Sentences Sents 贝 貝 bèi noun shellfish shellfish; shelled mollusks such as clams and snails; a shell or cowrie壳 殼 ké noun shell The hard outer covering of something, such as an egg, nut, or crab; also refers to a casing, housing, or shell of a machine or device.