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(Horology) a type of gearwheel, now used only in clocks, consisting of two parallel circular discs connected by a number of pins running parallel to the axis
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||lantern pinion - a small pinion having cylindrical bars instead of teeth, used chiefly in inexpensive clocks|
pinion - a gear with a small number of teeth designed to mesh with a larger wheel or rack
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