from The Century Dictionary and Cyclopedia
- n. A disk in a gear-cutter, milling-machine, or dividing-engine, having holes in its face to aid in dividing a gear-wheel or other piece into aliquot parts of a circumference and securing the desired number of teeth on the periphery; a divisionplate.
Sorry, no etymologies found.
This fuze is opened at the required number of seconds, by cutting close to the right of the mark on the index-plate.
Wordnik is becoming a not-for-profit! Read our announcement here.