preheat

The preheating stage of a process, especially for wave soldering or reflow soldering.
Found on http://www.encyclo.co.uk/local/20870

Preheat

To heat the oven, grill or toaster to a desired temperature before inserting the food.
Found on http://www.oetker.co.uk/oetker_uk/frequently_asked_questions/baking_glossar

Preheat

To set an oven or broiler at the desired temperature 15 to 30 minutes before use so that the temperature is reached before food is put in to cook.
Found on http://www.encyclo.co.uk/local/20111

Preheat

To set the oven or grill to a specific temperature to allow the internal temperature to increase sufficiently before cooking.
Found on http://www.wrenscottage.com/kitchen/glossary.php

preheat

[v] - heat beforehand
Found on http://www.webdictionary.co.uk/definition.php?query=preheat
No exact match found