LATIN DICTIONARYLexicon Latīnum
noun · neutersecond declension

perpendiculum

perpendiculum n (genitive perpendiculī)
Classical[pɛr.pɛnˈdɪ.kʊ.ɫũː]Ecclesiastical[per.penˈdiː.ku.lum]

Meaning

  1. neuterplumbline, plummet

Latīnē defined in Latin in our graded readers

Declension

declension
formsingularplural
nominativeperpendiculumperpendicula
genitiveperpendiculīperpendiculōrum
dativeperpendiculōperpendiculīs
accusativeperpendiculumperpendicula
ablativeperpendiculōperpendiculīs
vocativeperpendiculumperpendicula

perpendĭcŭlum, i, n. perpendo,
I. a plummet, plumb-line.
I. Lit.: non egeremus perpendiculis, non normis, non regulis, Cic. Fragm. ap. Non. 163, 3: ad perpendiculum columnas exigere, to examine by a plumb-line, id. Verr. 2, 1, 51, § 133: ad perpendiculum, perpendicular, perpendicularly, id. Fat. 10, 22: tigna non directa ad perpendiculum, sed prona et fastigiata, Caes. B. G. 4, 17: perpendiculo respondere (opp. habere proclinationes), Vitr. 6, 11; Plin. 35, 14, 49, § 172; Vulg. Zach. 1, 16.—
II. Trop.: ad perpendiculum seque suosque habuit, Aus. Parent. 5: honestatem lenium morum velut ad perpendiculum librans, Amm. 29, 2, 16; cf. id. 21, 16, 3: velut ad perpendiculum aemulae urbes, on a strict equality, id. 14, 8, 11.

Origins

From perpendō (“to weigh or examine carefully or exactly”) + -culum.

In the Academy Smith's classical dictionaries

AntiquitiesPerpendiculumPerpendiculum (κάθετος, μολυβδίς, στάθμη), a plumb-line, a string with a piece of metal attached, used by masons, carpenters, &c. to test the correctn…

Quick answers

What does perpendiculum mean in Latin?
perpendiculum, a noun, means “plumbline, plummet”.
What is the genitive of perpendiculum?
The genitive singular is perpendiculī. perpendiculum is neuter, second declension.
How do you pronounce perpendiculum?
In classical Latin, [pɛr.pɛnˈdɪ.kʊ.ɫũː]; in ecclesiastical (church) Latin, [per.penˈdiː.ku.lum].