defaecation
noun/ˌdefəˈkeɪʃn/, /ˌdiːfəˈkeɪʃn/
/ˌdefəˈkeɪʃn/, /ˌdiːfəˈkeɪʃn/
(British English) (also defecation British and North American English)
[uncountable] (formal)- the act of getting rid of solid waste from your body through your bowels
排便：通过肠道清除体内固体废物的行为