English noun: aculeus | |||
1. | aculeus (plant) a stiff sharp-pointed plant process | ||
Broader (hypernym) | enation, plant process | ||
Narrower (hyponym) | pricker, prickle, spikelet, spine, sticker, thorn | ||
2. | aculeus (animal) a sharp-pointed process especially a sting of a hymenopterous insect | ||
Broader (hypernym) | stinger | ||