lino

noun

1. 1.An inexpensive waterproof covering used especially for floors, made from solidified linseed oil over a burlap or canvas backing, or from its modern replacement, polyvinyl chloride.
2. 2.An assistant referee.
3. 3.A male line judge.
4. 4.An official whose primary task is to watch the blue line and determine when there has been an offside.
5. 5.An official whose primary task is to determine whether there has been a line of scrimmage violation.