a cake, especially a very light sponge cake with a rich icing or filling.
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How to use gâteau in a sentence
She had had gateau and cherries in a convent-garden once, and had swung among apple-blossoms in an orchard belonging to one.Heriot's Choice | Rosa Nouchette Carey
Do you know this most exquisite cake of yours much resembles a gateau aux truffes?Tales from "Blackwood," Volume 3 | Various
A gateau is also made of pig's liver; it is therefore rather difficult to define what a "gateau" is.
British Dictionary definitions for gateau
any of various elaborate cakes, usually layered with cream and richly decorated
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012