| 1. | (Bot.) The prickly fruit or seed of certain plants (as some species of Echinospermum and Cynoglossum) which cling to the clothing of those who brush by them. |
| Noun | 1. | beggar's lice - Eurasian and North American plants having small prickly nutlets that stick to clothing Synonyms: beggar lice |
| 2. | beggar's lice - any of various tropical and subtropical plants having trifoliate leaves and rough sticky pod sections or loments Synonyms: tick trefoil, beggar lice |