exosmosis

noun

ex·​os·​mo·​sis ˌek-(ˌ)säs-ˈmō-səs  -(ˌ)säz- 

plural exosmoses -ˌsēz 

: passage of material through a membrane from a region of higher to a region of lower concentration compare endosmosis

exosmotic

-ˈmät-ik 

adjective