Origin of perpendicular
Synonyms for perpendicular
Examples from the Web for perpendicularity
Historical Examples of perpendicularity
This perpendicularity we demand of all the figures in this picture of life.Essays, First Series
Ralph Waldo Emerson
The sense of perpendicularity, however, should constantly be cultivated.Handwork in Wood
Your argument about the perpendicularity of the dike strikes me as good.More Letters of Charles Darwin Volume II
Parallell-equality is derived from perpendicularity, and is of neere affinity to it.
Perpendicularity was in the former attributed to lines considered in a surface.
Word Origin for perpendicular
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.