diced /daɪst/ adjective2 •Cut up into small pieces, especially cubes, typically about ¼″ to ½″ square (about 6 to 13 mm square).Now add the diced ham to the mixture, then stir in the chopped celery.The onions are diced, whereas the carrots are sliced on the bias. •(slang) Of marked definition. formsmore diced · most diced