noun
1. or sector wheel : a toothed device resembling a portion of a gear wheel containing the center bearing and a part of the rim with its teeth
2. : a gear having a sector gear as its chief essential feature
noun
1. or sector wheel : a toothed device resembling a portion of a gear wheel containing the center bearing and a part of the rim with its teeth
2. : a gear having a sector gear as its chief essential feature
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012