LATIN DICTIONARYLexicon Latīnum
noun · neutersecond declension

iaculum

iaculum n (genitive iaculī)
Classical[ˈja.kʊ.ɫũː]Ecclesiastical[ˈjaː.ku.lum]
Mille Verba core vocabulary

Meaning

  1. neuterA dart, a javelin
    Septimo oppugnationis die maximo coorto vento ferventes fusili ex argilla glandes fundis et fervefacta iacula in casas, quae more Gallico stramentis erant tectae, iacere coeperunt.C. Iulii Caesaris commentarii de bello Gallico. Für den Schulgebrauch erklärt von Dr. Albert Doberenz. Sechste Auflage, 1874, p. 157 (lib. V, cap. 43) and p. 160 (lib. V, cap. 45)
    Iaculum et gladius et sagittā acūtā homō quī loquitur contrā proximum suum testimōnium falsumA man that beareth false witness against his neighbour, is like a dart and a sword and a sharp arrow. (trans.: Douay-Rheims Bible)4th century CE, Jerome of Stridon (St. Jerome), Vulgate, 25:18
  2. neuterA casting net, the weapon of a retiarius

Latīnē defined in Latin in our graded readers

tēlum leve quod manū mittitur.
iaculum -ī n — in Mille Verba, Castra in Aegyptō

Choosing the right word Döderlein's Latin Synonyms

Missile · Hasta · Lancea · Jaculum · Verutum · Tragulum · Pilum

Missile is the most general name for a weapon used in fighting at a distance, from the spear to the arrow; hasta and lancea serve both for thrusting and hurling; hasta (from σχαστήριον, σχάζω,) as a genuine Roman weapon, δορύ; lancea, as a foreign weapon, supposed to have come originally from the Suevi, λόγχη; pilum, jaculum, verutum, are more for hurling; jaculum, as the most general expression, including the hunting spear, βέλος; verutum (from ὀρυχή) and tragulum (τρώγλη) military weapons for hurling, ἄκων; pilum (from πῆλαι) in the singular, as the peculiar weapon for hurling used by the Roman legion. Liv. ix. 19. Romano pilum haud paulo quam hasta vehementius ictu missuque telum.

Declension

declension
formsingularplural
nominativeiaculumiacula
genitiveiaculīiaculōrum
dativeiaculōiaculīs
accusativeiaculumiacula
ablativeiaculōiaculīs
vocativeiaculumiacula

jăcŭlum, i, n. jaculus.
I. Lit., a dart, javelin: solem prae jaculorum multitudine et sagittarum non videbitis, Cic. Tusc. 1, 42, 101: murum jaculo traicere, id. Fin. 4, 9, 22: has (litteras) ille in jaculo illigatas affert, Caes. B. G. 5, 44: acutum, Ov. M. 10, 130: torquere, Juv. 5, 155; 8, 124.—
B. Trop.: fulminis, Mart. Cap. 2, § 151: radiorum solis, id. 1, § 13.—
II. A net, v. jaculus.

Origins

From iaculus, from iaciō (“to throw”).

Quick answers

What does iaculum mean in Latin?
iaculum, a noun, means “A dart, a javelin; A casting net, the weapon of a retiarius”.
What is the genitive of iaculum?
The genitive singular is iaculī. iaculum is neuter, second declension.
How do you pronounce iaculum?
In classical Latin, [ˈja.kʊ.ɫũː]; in ecclesiastical (church) Latin, [ˈjaː.ku.lum].