Pronunciation: /ˌækjʊˈliːi/
noun a plural form of aculeus, which refers to a small, sharp-pointed process or spine
A1 Bees use their aculeae to sting.
A2 The aculeae of a porcupine are used for defense.
B1 The aculeae of a cactus can be painful if touched.
B2 Scientists study the aculeae of insects for research purposes.
C1 The aculeae of certain sea creatures are used in traditional medicine.
C2 The aculeae of some plants contain toxins that can be harmful to humans.
formal The aculeae on the stem of the plant serve as a defense mechanism against herbivores.
informal Ouch! I accidentally touched the aculeae on the cactus and it really hurt.
slang Watch out for those prickly aculeae on the bushes, they can sting!
figurative His words were like aculeae, piercing through her emotions.
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