The word "pyro" is a shortened version of "pyromaniac," which refers to a person who enjoys or is obsessed with fire.
Sentences with «pyro»
Another Glee alumnus is set to join the Arrowverse, with Max Adler heating things up as Pyro in an upcoming episode of The Flash. (cbr.com)
Good news: Atlus uploaded a video this morning which shows fans how to make a special lantern with Pyro Jack's face (who is based on the traditional Jack «o Lantern figure). (perfectly-nintendo.com)
At first blush, Burning Man seems like one big party, and especially for pyros. (christianitytoday.com)