verb /sɪˈkɹiːt/
a) To extract a substance from blood, sap, or similar to produce and emit waste for excretion or for the fulfilling of a physiological function.
Many tumors secrete two or more different hormones.
b) To conceal.
If you won’t believe my great new doctrine (which, by the bye, is as old as the Greeks), that souls secrete their bodies, as snails do shells, you will remain in outer darkness.
Wikipedia foundation.