See dot-matrix printer for more dot matrix printerBrE /ˌdɒt ˈmeɪtrɪks prɪntə(r)/ 🔊NAmE /ˌdɑːt ˈmeɪtrɪks prɪntər/ 🔊 nouna machine that prints letters, numbers, etc. formed from very small dots 点阵打印机