excretan. 排洩物分泌物學術名詞排泄物：畜牧學、電機工程、食品科技、核能、獸醫學分泌物：食品科技蠶糞：畜牧學蠶沙：畜牧學英文釋義waste matter (as urine or sweat but especially feces) discharged from the body