pyro

¹

[ pahy-roh ]

noun

, Informal.

, plural py·ros.

1. a pyromaniac.

pyro-

²

1. a combining form meaning “fire,” “heat,” “high temperature,” used in the formation of compound words:

   pyrogen; pyrolusite; pyromancy.

2. Chemistry. a combining form used in the names of inorganic acids, indicating that the acid's water content is intermediate between that of the corresponding ortho- (more water) and meta- (least water) acids ( pyroantimonic, H 4 Sb 2 O 7 , pyroarsenic, H 4 As 2 O 7 , and pyrosulfuric, H 2 S 2 O 7 , acids ). The combining form is also used in the names of the salts of these acids. If the acid ends in -ic, the corresponding salt ends in -ate ( pyroboric acid, H 2 B 4 O 7 , and potassium pyrobate, K 2 B 4 O 7 , or pyrosulfuric, H 2 S 2 O 7 , and pyrosulfate, N 2 S 2 O 7 ); if the acid ends in -ous, the corresponding salt ends in -ite ( pyrophosphorous acid, H 4 P 2 O 5 , potassium pyrophosphite, K 4 P 2 O 5 ).

pyro-

combining_form

1. denoting fire, heat, or high temperature

   pyrometer

   pyromania

2. caused or obtained by fire or heat

   pyroelectricity

3. chem
   1. denoting a new substance obtained by heating another

      pyroboric acid is obtained by heating boric acid

   2. denoting an acid or salt with a water content intermediate between that of the ortho- and meta- compounds

      pyro-phosphoric acid

4. mineralogy
   1. having a property that changes upon the application of heat

      pyromorphite

   2. having a flame-coloured appearance

      pyroxylin

Word History and Origins

Origin of pyro¹

By shortening; -o

Origin of pyro²

< Greek pyro-, combining form of pŷr fire

Word History and Origins

Origin of pyro¹

from Gk pur fire

Example Sentences

For this one, we had an amazing simulation tool set called ILM Pyro where you can take parameters from a real storm and put them in.

From Los Angeles Times

While supporters have mobilised independently of the club and fund their choreographies, banners and pyro displays, Hammarby's 'one-club' philosophy has certainly helped.

From BBC

Pyro at football matches in Scotland are illegal, but in reality there's no disincentive for fans to use them.

From BBC

From the SPFL, there's silence, which is exploited by the pyro brigade.

From BBC

“Just remember that Green Day has pyro.”

From Los Angeles Times