| 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 | ||