• Webster's Revised Unabridged Dictionary
    • n Perpendicle Something hanging straight down; a plumb line.
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Century Dictionary and Cyclopedia
    • n perpendicle A pendant or something hanging down in a direct line; a plumb-line.
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Webster's Revised Unabridged Dictionary
L. perpendiculum,; per + pendere, to hang: cf. F. perpendicule,


In literature:

The city is bilt on a variety of perpendicler hills, each hill bein' a trifle wuss nor t'other one.
"The Complete Works of Artemus Ward" by Charles Farrar Browne (AKA Artemus Ward)