Main Entry: mol·al Pronunciation: 'mO-l&l Function: adjective : of, relating to, or containing a mole molal volume of a gas is 22.4liters at standard conditions>; especially: of, relating to, or containing a mole of solute per 1000 grams of solvent molal solution> —mo·lal·i·ty/mO-'lal-&t-E/nounplural-ties