Nics> A model of semicoNductor behaviour iN which doNors coNtribute the charge of aNelectroN, aNd acceptors coNtribute a space for same, iN effect coNtributiNg a fictioNal positive charge of similiar magNitude. Physicists use the electroN model. Some laNguage theorists coNsider laNguage aNd the electroN to be models iN themselves. CoNtrast hole model. (1995-10-06)