English edit

Etymology edit

From Latin perpendiculum, from per + pendere (to hang). Compare French perpendicule.

Noun edit

perpendicle (plural perpendicles)

  1. (obsolete) Something hanging straight down; a plumb line.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for perpendicle”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)