(Or "single-electron transistor") A location capable of coNTaining a single electrical charge i.e., a single electron of Coulomb charge. Physically, quaNTum dots are nanometer-size semiconductor structures in which the presence or absence of a quaNTum electron can be used to store information. See also: quaNTum cell, quaNTum cell wire, {quaNTum-dot cellular automata}. . ["QuaNTum Dot Heterostructures", D. Bimberg, et al, John Wiley & Sons Ltd., Dec 1998]. (2001-07-17)