There is a curious sense of perpendicularity about these mountain rhapsodies.
Your argument about the perpendicularity of the dike strikes me as good.
And from the perpendicularity of lines, the perpendicularity of surfaces is taken, as hereafter shall appeare.
perpendicularity was in the former attributed to lines considered in a surface.
"I see," added Graines, tumbling over, but regaining his perpendicularity with a trying effort.
The sense of perpendicularity, however, should constantly be cultivated.
Even an old sailor may find it impossible to maintain his perpendicularity when the boat is unexpectedly moved.
This is the fundamental property which forms the definition of perpendicularity.
The symmetry of perpendicularity is a particular instance of the symmetry of the mutual relations between two time-systems.
We determine our perpendicularity by the apparent motions of objects.
late 15c., from adverb (late 14c.), from Old French perpendiculer, from Latin perpendicularis "vertical, as a plumb line," from perpendiculum "plumb line," from perpendere "balance carefully," from per- "thoroughly" (see per) + pendere "to weigh, to hang" (see pendant). As a noun from 1570s. Related: Perpendicularly; perpendicularity.