Fruit (slang) fruit" (and rarely "old tin of fruit") to the 1920s in Britain possibly deriving from the phrase "fruit of the womb". In the United States, however, both "fruit" and "fruitcake" are seen as negative with fruitcake likely originating from "nutty as a fruitcake" (a crazy person). A costermonger was a street seller of fruit and vegetables. The term, which derived from the words "costard" (a type of apple) and "monger", i.e. "seller", came to be particularly associated with the "barrow boys" of London who would sell their produce from a wheelbarrow or wheeled market stall. Costermongers have existed in London
Algebraic variety algebraic sets. Using the Nullstellensatz and related results, mathematicians have established a strong correspondence between questions on algebraic sets and questions of ring theory. This correspondence is a defining feature of algebraic geometry. An "affine variety" over an algebraically closed field is conceptually the easiest type of variety to define, which will be done in this section. Next, one can define projective and quasi-projective varieties in a similar way. The most general definition of a variety is obtained by patching together smaller quasi-projective varieties. It is not obvious that one can construct genuinely new examples of varieties in this way,