| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| pentane (pěn'tān') Pronunciation Key
A colorless, flammable hydrocarbon derived from petroleum and used as a solvent. Pentane occurs in three isomers and is the fifth member of the alkane series. Chemical formula: C5H12. |