From Longman Dictionary of Contemporary Englishdot-matrix printerˈdot-matrix ˌprinter noun [countable] TDa machine connected to a computer that prints letters, numbers etc using many small dots
Examples from the Corpus
dot-matrix printer• As the name implies, a dot-matrix printer uses patterns of dots printed within a rectangular matrix to generate individual characters.• The first four horizontal sections printed on a dot-matrix printer using continuous stationery.• But if it's to a dot-matrix printer, the quality will be so low, so don't spend too much.From Longman Business Dictionarydot-matrix printerdot-ˈmatrix ˌprinter (also dot-matrix) an inexpensive, low-quality printer that prints each letter as a group of small dotsDot-matrix printers can, at best, manage 240 dots per inch and are both slow and noisy. → printer 