בִּילָה, (= בְּלִילָה, fr. בלל, cmp. נִידָה Lam. I, 8; עִילָה a. עֲלִילָה) thorough mixture, even distribution of mixed objects. Zeb. 80ᵃ יש ב׳ a mixture is considered evenly distributed in all its parts. R. Hash. 13ᵇ לכל אין ב׳ none of the mixtures named is a real mixture (of even distribution), except wine and oil (being liquid). Ḥull. 83ᵇ, a. fr. כל הראוי לב׳ וכ׳ wherever from the proportions and properties of the mixture a perfect fusion is possible, the real act of mixing thoroughly is not indispensable.