砂囊 Traditional form: 砂囊 Pinyin (reading): shānáng Definitions: gizzard (anatomy of birds, gastropods etc) Characters: 砂 - sand, pebbles, gravel; gritty 囊 - bag, purse, sack; to pocket, to stow Traditional characters: 砂 - sand, pebbles, gravel; gritty 囊 - bag, purse, sack; to pocket, to stow