press·mark 
(prĕsmärk′)
(prĕsmärk′)n.
1. Printing A notation or figure in the margin of a printed sheet indicating the press on which it was printed.
2. Chiefly British A notation in or on a book indicating where it should be placed in a library.
- parallel computing
- parallel cousin
- parallelepiped
- parallelism
- parallelogram
- parallel processing
- parallel universe
- paralog
- paralogism
- paralogist
- paralogistic
- paralogous
- paralogue
- Paralympian
- Paralympic Games
- paralyse
- paralysis
- paralysis agitans
- paralytic
- paralytically
- paralyzation
- paralyze
- paralyzer
- paralyzingly
- paramagnet