clicker

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. One that clicks, as:
2. n. A remote control, as for a television or VCR.
3. n. A computer mouse.
4. n. A mechanical counter.

Century Dictionary and Cyclopedia

1. n. Same as click, 3.
2. n. A person employed by a shopkeeper to stand at the door and solicit custom.
3. n. In shoemaking, one who cuts out leather for the uppers and soles of boots and shoes.
4. n. In printing, as formerly and still sometimes conducted, the compositor who receives the copy of a work and distributes it among the other compositors, makes up the pages, and sets up head-lines, etc.; the leader of a companionship of typesetters.

Wiktionary

1. n. slang The remote-control device used to change settings on a television set, VCR, or other electronic equipment.
2. n. A person who cuts out the uppers of shoes from pieces of leather using a flexible knife that clicks as it changes direction.
3. n. A machine that cuts materials using a steel rule die. The name comes from the sound (click) when the material is cut. May be hand, pneumatic, or hydraulic powered.
4. n. A signalling device used by military forces. Pressed between thumb and fingers, it makes a small but distinctive click understood by other members of a unit.
5. n. A small mechanical device that produces a clicking sound, used in dog training.
6. n. Someone who clicks, for example on internet hyperlinks.
7. n. obsolete, UK One who stands before a shop door to invite people to buy.
8. n. obsolete, printing One who has charge of the work of a companionship.

GNU Webster's 1913

1. n. Low, Eng. One who stands before a shop door to invite people to buy.
2. n. (Print.) One who as has charge of the work of a companionship.