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pyrophyllite
pyrosis
pyrostat
pyrotechnic
pyrotechnics
pyroxene
pyroxenite
pyroxylin
pyrrhic
Pyrrhic victory
Pyrrhonism
pyrrhotite
pyrrole
pyruvate
pyruvic acid
Pythagorean theorem
Pythagoreanism
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pyrone

py·rone [ p rn ] (plural py·rones)


noun 
Definition:
 
six-membered organic compound: either of two six-membered organic ring compounds containing five carbon atoms and an oxygen atom, with a second oxygen atom attached to one of the carbon atoms. The benzene derivative is used as a pharmaceutical. C5H4O2

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