[bloo-lahyn] 
| a print made on light-sensitive paper and used as a proof for checking the position of stripped-up negatives or positives and copy prior to platemaking. |
| blue·line or blue line (blōō'līn') n. Either of two blue lines running across an ice-hockey rink, usually 60 feet from each goal, and dividing the rink into defensive, neutral, and offensive zones. |
