Meaning of binder

bind•er

1. a person or thing that binds.
2. a detachable cover, resembling the cover of a notebook or book, with clasps or rings for holding loose papers together: a three-ring binder.
3. a person who binds books; a bookbinder.
4. an agreement by which property or liability coverage is granted pending issuance of a policy.
1. an attachment to a harvester or reaper for binding the cut grain.
2. Also calledself-binder.a machine that cuts and binds grain.
6. any substance that causes the components of a mixture to cohere.
7. a vehicle in which pigment is suspended.
8. (in powder metallurgy) a substance for holding compacted metal powder together while it is being sintered.
1. a stone, as a perpend, for bonding masonry.
2. a girder supporting the ends of two sets of floor joists.
3. a material for holding loose material together, as in a macadamized road.
4. stirrup (def. 5).
10. a large quantity, esp. of food.