| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| peroxy- or (esp for inorganic compounds) peroxo- | |
| —combining form | |
| Also (not in technical usage): per- indicating the presence of the peroxide group, -O--O-: peroxysulphuric acid | |
| peroxo- or (esp for inorganic compounds) peroxo- | |
| —combining form | |
peroxy per·ox·y (pə-rŏk'sē)
adj.
Containing the bivalent group O2.