| 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. |
pachytene pach·y·tene (pāk'ĭ-tēn')
n.
The third stage of the prophase of meiosis during which the homologous chromosomes become short and thick and divide into four distinct chromatids.