Liking for sugar

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
"fondness for sugary stuff," late 14c., from sweet (adj.) + tooth in the sense of "taste, liking" (see toothsome ).

Wikipedia Word definitions in Wikipedia
Sweet Tooth may refer to:

WordNet Word definitions in WordNet
n. a strong appetite for sweet food

Wiktionary Word definitions in Wiktionary
n. 1 (context idiomatic only in singular English) a liking for foods that are sweet; a weakness for sweets 2 (context idiomatic countable English) Someone with a liking for sweet foods.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Sweet \Sweet\, a. [Compar. Sweeter ; superl. Sweetest .] [OE. swete, swote, sote, AS. sw[=e]te; akin to OFries. sw[=e]te, OS. sw[=o]ti, D. zoet, G. s["u]ss, OHG. suozi, Icel. s[ae]tr, s[oe]tr, Sw. s["o]t, Dan. s["o]d, Goth. suts, L. suavis, for suadvis, ...