any mono-, di-, or triester of glycerol with (one or more) fatty acids (termed respectively monoacylglycerol, diacylglycerol, or triacylglycerol); formerly known as mono-, di-, or triglyceride.
acylglycerols (plural), also denotes any mixture of mono-, di-, and/or triacylglycerols whatever its degree of complexity, including any comprising a neutral fat.