"Ascenders, arms, crossbars, counters, spines, shoulders, tails, stems and spurs, altogether there are over 20 components in the anatomy of type. There remains a gap in the vocabularly of this most respected of crafts, however.
In the designing or cutting of stencil letterforms, one is invariably brought to a point wherein the supporting canvas is joined to counter of the letter. Up until now, these supporting areas have gone without definition or label. A gross oversight by the standards of any industry, let alone one with as rich and respected a history as typography.
The purpose of this initiative is to remedy this oversight by introducing a new term and definition into the common vernacular of designers and typographers." (Thanks Grant!)