We found 8 dictionaries that define the word line pair:

General (3 matching dictionaries)

1. line-pair: Wordnik
2. Line pair: Wikipedia, the Free Encyclopedia
3. Line pair: TheFreeDictionary.com

Art (1 matching dictionary)

4. Glossary of Stamp Collecting Terms (No longer online)

Business (2 matching dictionaries)

5. Line pair, Line pair: Financial dictionary

Computing (1 matching dictionary)

6. line pair: Encyclopedia

Medicine (1 matching dictionary)

7. line pair: Medical dictionary

Definitions from Wikipedia (Line pair) ▸ noun:  In philately, a line pair is a coil pair of postage stamps bearing an inked line between the two stamps. ▸ Words similar to line pair ▸ Usage examples for line pair ▸ Idioms related to line pair ▸ Wikipedia articles (New!) ▸ Words that often appear near line pair ▸ Rhymes of line pair ▸ Invented words related to line pair