os ‧ mo ‧ sis /ɒzˈməʊsəs, ɒzˈməʊsɪs $ ɑːzˈmoʊ-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Origin: osmose 'osmosis' (1800-1900) , from Greek osmos 'push' ]
1 . if you learn facts or understand ideas by osmosis, you gradually learn them by hearing them often
by osmosis
Children learn new languages by osmosis.
He seems to absorb information through a process of osmosis.
2 . technical the gradual process of liquid passing through a ↑ membrane
—osmotic /ɒzˈmɒtɪk $ ɑːzˈmɑː-/ adjective