blueline

[bloo-lahyn] /ˈbluˌlaɪn/
noun, Printing.
1.
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.
Also, blue.
Origin
blue + line1
Examples from the web for blueline
  • He has great value in keeper leagues and should be watched closely in other formats if you need offense from your blueline.
  • Depending on where he lands, he can help the power play and log big minutes on the blueline.
  • Questions remain around aging goaltender and a thin blueline.