| wrist pin | |
| —n | |
| 1. | a cylindrical boss or pin attached to the side of a wheel parallel with the axis, esp one forming a bearing for a crank |
| 2. | (US), (Canadian) Also called (esp in Britain): gudgeon pin the pin through the skirt of a piston in an internal-combustion engine, to which the little end of the connecting rod is attached |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
| a chattering or flighty, light-headed person. |