pref. 1. Fire; heat: pyrotechnic. 2. Relating to the action of fire or heat: pyrography. 3. Fever: pyrogen. 4. Formed upon heating, by loss of water or another small molecule: pyrosulfuric acid. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
n. pl. py·ros Slang 1. A person who has a compulsion to set fires; a pyromaniac. 2. See pyrotechnics. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.