LATIN DICTIONARYLexicon Latīnum
noun · neutersecond declension

hēmicyclium

hēmicyclium n (genitive hēmicycliī or hēmicyclī)
Classical[heː.mɪˈky.kli.ũː]Ecclesiastical[e.miˈt͡ʃiː.kli.um]

Meaning

  1. half circle, semicircle
    Rectus hic hippodromi limes in extrema parte hemicyclio frangitur mutatque faciemHere, the straight boundary of the hippodrome is broken and changes its appearance at the far end with a semicircular shape61 CE – c. 112 CE, Plinius Minor, Epistulae 5.6.33
  2. semicircular recess with seats
    domi in hemicyclio sedentemI sat at home in the semicircular alcove44 BCE, Cicero, Laelius de amicitia 2
  3. semicircular public place furnished with rows of seats for learned discussions
    Statuam habet Praeneste in superiore fori parte circa hemicycliumIt has a statue in Praeneste, in the upper part of the forum, around the semicircular areac. 69 CE – 122 CE, Suetonius, De grammaticis et rhetoribus 17
  4. semicircular kind of sundial
    Hemicyclium excavatum ex quadrato ad enclimaque succisum Berosus Chaldaeus dicitur invenisseThe excavated semicircular sundial, shaped from a square to a sloping form, is said to have been invented by the Chaldean Berosusc. 15 BCE, Vitruvius, De architectura 9.8.1

Declension

declension
formsingularplural
nominativehēmicycliumhēmicyclia
genitivehēmicycliī
hēmicyclī
hēmicycliōrum
dativehēmicycliōhēmicycliīs
accusativehēmicycliumhēmicyclia
ablativehēmicycliōhēmicycliīs
vocativehēmicycliumhēmicyclia

hēmĭcyclium, ĭi, n., = ἡμικύκλιον,
I. a half-circle, semicircle, Vitr. 9, 8, 5; Plin. Ep. 5, 6, 33.—
II. In partic.
A. A semicircular recess, with seats, Cic. Lael. 1, 2; Sid. Ep. 2, 2.—
B. A semicircular public place furnished with rows of seats for learned discussions, Suet. Gramm. 17.—
C. A semicircular kind of sundial, Vitr. 9, 8, 1.

Origins

Borrowed from Ancient Greek ἡμῐκῠ́κλῐον (hēmĭkŭ́klĭon, “semicircle”), substantive of ἡμῐκῠ́κλῐος (hēmĭkŭ́klĭos, “semicircular”).

Descendants
  • Englishhemicycle
  • Frenchhémicycle

In the Academy Smith's classical dictionaries

Quick answers

What does hēmicyclium mean in Latin?
hēmicyclium, a noun, means “half circle, semicircle”.
What is the genitive of hēmicyclium?
The genitive singular is hēmicycliī. hēmicyclium is neuter, second declension.
How do you pronounce hēmicyclium?
In classical Latin, [heː.mɪˈky.kli.ũː]; in ecclesiastical (church) Latin, [e.miˈt͡ʃiː.kli.um].