pyr-


Also found in: Medical, Encyclopedia.

pyr-

pref.
Variant of pyro-.

pyr-

combining form
a variant of pyro-

pyro-

1. a combining form meaning “fire,” “heat,” “high temperature,” used in the formation of compound words: pyrogen; pyromancy.
2.
a. a combining form used in the names of inorganic acids, the water content of which is intermediate between the ortho and meta forms of an acid: pyrophosphoric acid.
b. a combining form used in the names of the salts of these acids.
Also, esp. before h or a vowel, pyr-.
[< Greek pyro-, comb. form of pŷr fire]