<p><strong>Noun</strong></p><ul><li>Any of various rotary tools, with helical or straight flutes, for finishing or enlarging holes drilled in metal.</li><li>Any bladelike pick or rod used for scraping, shaping, or enlarging a hole: a pipe reamer.</li><li>A kitchen utensil for extracting and collecting juice from fruits, having a deep saucer-like base and in the center a grooved cone on which the fruit half is pressed down by hand.</li><li>A drill with a spiral blade, used in dentistry for enlarging root canals.</li></ul>