a. [f. Gr. ἔνδο-ν + ὠσμό-ς (see ENDOSMOSIS) + -IC.] Of or pertaining to endosmosis.

1

c. 1865.  J. Wylde, in Circ. Sc., I. 62/2. Gases have an astonishing tendency to mix together, by what is called endosmic action.

2