Middle English Dictionary Entry
perpendicle n.
Entry Info
| Forms | perpendicle n. |
| Etymology | L perpendiculum; also cp. F (16th-cent.) perpendicule. |
Definitions (Senses and Subsenses)
1.
The plumb line of a quadrant.
Associated quotations
- ?c1400 Treat.Geom.(Sln 213)58 : Biholde þan þe heght of þat thyng by bothe holes of þe quadrant and come toward and go froward til þe perpendicle, þat es to say, þe threde whereon þe plumbe henges, falle vpon þe mydel lyne of þe quadrant.
- ?c1400 Treat.Geom.(Sln 213)58 : Byholde vpon what place of þe quadrant þe perpendicle falles.
- ?c1400 Treat.Geom.(Sln 213)59 : Holdes þe cone of þe quadrant, þat es to say, þe cornel of þe quadrant, even vpryght in whilk cornel es þe nayle whereby þe perpendicle henges.
- ?c1400 Treat.Geom.(Sln 213)59 : When þe heght of þe sonne es more þan 45 degres, þan þe perpendicle falles vpon þe vmbre toward.
Supplemental Materials (draft)
- a1484 Treat.Quadrant(1) (Trin-C R.14.52)637/411 : Note what gree of the cercle equinoccial the threede of the perpendicle touchith, for that is the gree sought.
Note: Additional quot.