LATIN DICTIONARYLexicon Latīnum
noun · femininesecond declension

diametros

diametros f (genitive diametrī)
Classical[diˈa.mɛ.trɔs]Ecclesiastical[diˈaː.me.tros]

Meaning

  1. femininediameter
    diameter trānsversa et longitūdinālistransverse and longitudinal diameter
    diameter rēcta/conjugāta, oblīqua et trānsversa(pelvic measurements)
  2. femininediametric position, opposite
    Ita ipse; sed haec ex diametrō pugnant cum verbīs et mente S. Joannis, aeque ac cum rērum ēventū, et cum fidē orthodoxā.Thus of themselves; but these out of a diametrical position fights with the words and mind of S. John, and equally with matters of the events, and with the orthodox faith.(Can we date this quote?), Cornelius a Lapide, “MDCCCXI: Apocalypsin, Chapter 20, p 1309”, in Commentarii in Sacram Scripturam, Tomus X, Lugduni, apud Pelagaud et Lesne:

Declension

declension
formsingularplural
nominativediametrosdiametrī
diametroe
genitivediametrīdiametrōrum
dativediametrōdiametrīs
accusativediametron
diamētrum, diametrum
diametrōs
ablativediametrōdiametrīs
vocativediametrediametrī
diametroe

dĭămē^tros, i, f., = διάμετρος,
I. a diameter, Col. 5, 2, 7; Vitr. 10, 14; Macr. Somn. Scip. 1, 20 sq. al.—
II. Adj., central: radiatio, Firm. Math. 4, 1 med.

Origins

  1. Proto-Indo-European*dwóh₁
  2. Latindiametros

Proto-Indo-European *trísinflu. Proto-Indo-European *dwísder. Ancient Greek διά (diá) Ancient Greek δῐᾰ- (dĭă-) Proto-Indo-European *meh₁- Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Hellenic *-tron Ancient Greek -τρον (-tron) Ancient Greek μέτρον (métron) Ancient Greek διάμετρος (diámetros)bor. Latin diametros Borrowed from Ancient Greek διάμετρος (diámetros, “diameter”), from δῐᾰ- (dĭă-, “through, across”) + μέτρον (métron, “measure”).

In English words that came into English from diametros

  • diameterdiametros
  • diametraldiametrālis

Quick answers

What does diametros mean in Latin?
diametros, a noun, means “diameter; diametric position, opposite”.
What is the genitive of diametros?
The genitive singular is diametrī. diametros is feminine, second declension.
How do you pronounce diametros?
In classical Latin, [diˈa.mɛ.trɔs]; in ecclesiastical (church) Latin, [diˈaː.me.tros].
Where does diametros come from?
Proto-Indo-European *dwóh₁ → Latin diametros.