From Longman Dictionary of Contemporary Englishicingic‧ing /ˈaɪsɪŋ/ noun [uncountable] 1 DFCa mixture made from very fine light sugar and liquid, used to cover cakes SYN frosting American English2 → the icing on the cake
Examples from the Corpus
icing• Shape curved arms from fondant icing and position, tucking them under the head slightly to raise it up.• Spoon a little icing on to each biscuit, spread almost to the edges and decorate as desired.• Transfer to the cake drum with care, securing on with a little royal icing.• Colour a little more royal icing pink, keep tightly wrapped, and colour the remaining royal icing green.• However, if a hard smooth surface is required royal icing is very effective.• Secure in place with little spots of soft royal icing. 