Fly"er (?), n. [See Flier.]
1.
One that uses wings.
2.
The fly of a flag: See Fly, n., 6.
3.
Anything that is scattered abroad in great numbers as a theatrical programme, an advertising leaf, etc.
4. Arch.
One in a flight of steps which are parallel to each other(as in ordinary stairs), as distinguished from a winder.
5.
The pair of arms attached to the spindle of a spinning frame, over which the thread passes to the bobbin; -- so called from their swift revolution. See Fly, n., 11.
6.
The fan wheel that rotates the cap of a windmill as the wind veers.
Internat. Cyc.
7. Stock Jobbing
A small operation not involving ? considerable part of one's capital, or not in the line of one's ordinary business; a venture.
[Cant]
Bartlett.
© Webster 1913.