The word "osmotic" refers to the movement of molecules or particles from an area of higher concentration to an area of lower concentration, through a semi-permeable membrane. Full definition
have demonstrated that extreme changes in osmotic pressure and pH can destabilize the viral envelope. (blog.addgene.org)
Excessive sugar (as with lactose intolerance - a milk sugar) or salt intake can cause osmotic diarrhea as can the use of too much water - soluble molecules, like magnesium or vitamin C, that result in increased fluid retention in the bowel. (pethealthandnutritioncenter.com)
In the human cornea, the endothelium is the most important layer for the maintenance of osmotic balance and the transparency of corneal tissue [1]. (molvis.org)