LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

aculeātus

aculeātus (feminine aculeāta, neuter aculeātum, superlative aculeātissimus)
Classical[a.kʊ.ɫeˈaː.tʊs]Ecclesiastical[a.ku.leˈaː.tus]

Meaning

  1. adjectiveprickly
  2. adjectivebarbed
  3. adjectivestinging, barbed (metaphorical)
    [PISTOCLERUS] Quia istaec lepida sunt memoratui: / éadem in usu atque úbi periclum fácias, aculeáta sunt, / animum fodicant, bona distimulant, facta et famam sauciant.PISTOCLERUS: Because these things are pleasant in the talking of; but in the practice, and when you make trial, the same are armed with stings. They pierce the feelings, goad one's fortune, and wound one's merits and character.― Henry Thomas Riley, 1912, Perseusc. 190 BCE, Plautus, Bacchides 1.1.28–30 (trochaic septenarius)
  4. adjectivesubtle

Declension

singular
formmasculinefeminineneuter
nominativeaculeātusaculeātaaculeātum
genitiveaculeātīaculeātaeaculeātī
dativeaculeātōaculeātaeaculeātō
accusativeaculeātumaculeātamaculeātum
ablativeaculeātōaculeātāaculeātō
vocativeaculeāteaculeātaaculeātum
plural
formmasculinefeminineneuter
nominativeaculeātīaculeātaeaculeāta
genitiveaculeātōrumaculeātārumaculeātōrum
dativeaculeātīsaculeātīsaculeātīs
accusativeaculeātōsaculeātāsaculeāta
ablativeaculeātīsaculeātīsaculeātīs
vocativeaculeātīaculeātaeaculeāta

ăcūlĕātus, a, um, adj. aculeus,
I. furnished with stings or prickles, thorny, prickly.
I. Lit., of animals and plants: animalia, Plin. 20, 22, 91: bruchus, Vulg. Jer. 51, 27: herbae, Plin. 24, 19, 119: ictus, a puncture made by a sting, Plin. 20, 21, 84, § 223.—
II. Fig.
A. Stinging, pointed, sharp: istaec ... aculeata sunt, animum fodicant, Plaut. Bacch. 1, 1, 30: litterae, Cic. Att. 14, 18, 1.—
B. Subtle, cunning: contorta et aculeata sophismata, Cic. Ac. 2, 24.

Origins

Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-tós Proto-Indo-European *-eh₂tos Proto-Italic *-ātos Latin -ātus Latin aculeātus From aculeus (“sting, stinger”) + -ātus (“-ed”, adjective-forming suffix).

Descendants
  • Catalanaculeat
  • Frenchaculéate
  • Italianaculeato
  • Portugueseaculeado

In English words that came into English from aculeātus

  • aculeateaculeātus
  • aculeatedaculeātus

Quick answers

What does aculeātus mean in Latin?
aculeātus, a adjective, means “prickly; barbed; stinging, barbed (metaphorical)”.
How do you pronounce aculeātus?
In classical Latin, [a.kʊ.ɫeˈaː.tʊs]; in ecclesiastical (church) Latin, [a.ku.leˈaː.tus].