Synonyms of secretion
dischargeWhen there is a discharge of a substance, the substance comes out from inside somewhere.
• They develop a fever and a watery discharge from the eyes.
emissionAn emission of something such as gas or radiation is the release of it into the atmosphere.
• the emission of gases such as carbon dioxide
Thesaurus for secretion from the Collins English Thesaurus
a substance that is released from a cell, esp a glandular cell, and is synthesized in the cell