aculei 🔊 Listen to this < /əˈkyu liˌaɪ/. Also acus. the modified ovipositor or sting of certain hymenopterous insects. prickle(def 2). noun a prickle or spine, such as the thorn of a rose a sting or ovipositor Definitions of aculei: Synonyms, Antonyms and Pronunciation File:Imenoforo aculei fungo.jpg – Wikimedia Commons Perché il riccio africano perde aculei? – Cause e soluzioni Leggende metropolitane : i porcospini non scagliano gli aculei Share Facebook Twitter Google +