A galette is a type of French pastry that is made with a rich, flaky crust, and traditionally served at Epiphany, on 6 January each year.Many bakeries also offer galettes year round, in both savory and sweet incarnations.n Epiphany galette is known in French as a galette des rois, or  king cake , and the consumer who gets the slice that has the charm in it is playfully crowned the king or queen. Savory fillings and garnishes are also not unusual. Meats such as ham and sausage are sometimes served with Galletes.
Freebase(0.00 / 0 votes)Rate this definition: Interleukin. Interleukins are a group of cytokines that were first seen to be expressed by white blood cells. The term interleukin derives from as a means of communication, and deriving from the fact that many of these proteins are produced by leukocytes and act on leukocytes.
IL-2 also seems to induce the production of interferon and is used as an anticancer drug in the treatment of a wide variety of solid malignant tumors. Another interleukin, interleukin-3 (IL-3) is necessary for the differentiation of suppressor T cells.