To cook food in an oven, thereby surrounding it with dry heat. It's imperative to know the accurate temperature of an oven. Because most of them bake either hotter or cooler than their gauges read, an oven thermometer is vital for accurate temperature readings.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.