シャコ Also written しゃこ, 硨磲 Meanings Noun giant clam (any clam of subfamily Tridacninae) See also: シャコガイ. giant clam shell (one of the seven treasures) See also: 七宝 (しっぽう). Words containing シャコ シャコ万 (しゃこまん) C clamp シャコ万力 (しゃこまんりき) C clamp Jinuma: Japanese Dictionary · Word lists