We found 6 dictionaries that define the word heat rays:

General (6 matching dictionaries)

1. heat rays: Merriam-Webster
2. heat rays: Vocabulary.com
3. heat-rays, heat rays: Wordnik
4. Heat rays: Dictionary.com
5. heat rays: FreeDictionary.org
6. Heat rays: TheFreeDictionary.com

(Note: See heat_ray as well.)

Definitions from WordNet (heat ray) ▸ noun:  a ray that produces a thermal effect ▸ Also see heat_ray ▸ Words similar to heat rays ▸ Usage examples for heat rays ▸ Idioms related to heat rays ▸ Wikipedia articles (New!) ▸ Words that often appear near heat rays ▸ Rhymes of heat rays ▸ Invented words related to heat rays