noun. Any of a group of lipids that are formed by the linking of a fatty acid to sphingosine, are found in cell membranes, and help to regulate the differentiation, proliferation, and death of cells.

noun. A lipid composed of sphingosine and a fatty acid.

"According to their research the gene contains the instructions of what is known as ceramide synthase."

18f-fdg  decisional  endocytic  enzyme-catalyzed  exuviae