Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun aculeus

2 senses of aculeus

Sense 1
aculeus -- (a stiff sharp-pointed plant process)
       => plant process, enation -- (a natural projection or outgrowth from a plant body or organ)

Sense 2
aculeus -- (a sharp-pointed process especially a sting of a hymenopterous insect)
       => stinger -- (a sharp organ of offense or defense (as of a wasp or stingray or scorpion) often connected with a poison gland)