Dictionary
loop•er
Pronunciation: (lOO'pur), [key]—
n.
1. a person or thing that loops something or forms loops.
2. a measuringworm.
3. the thread holder in a sewing machine using two threads.
4. Baseball.blooper (def. 3a).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.