Word Study
pyro-
CIDE DICTIONARY
pyro-, [Gr. , , fire.].
Combining forms designating fire or heat; specifically (Chem.) , used to imply an actual or theoretical derivative by the action of heat; as in pyrophosphoric, pyrosulphuric, pyrotartaric, pyrotungstic, etc. [1913 Webster]
OXFORD DICTIONARY
pyro-, comb. form 1 denoting fire.
2 Chem. denoting a new substance formed from another by elimination of water (pyrophosphate).
3 Mineral. denoting a mineral etc. showing some property or change under the action of heat, or having a fiery red or yellow colour.
2 Chem. denoting a new substance formed from another by elimination of water (pyrophosphate).
3 Mineral. denoting a mineral etc. showing some property or change under the action of heat, or having a fiery red or yellow colour.
Etymology
Gk puro- f. pur fire
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