| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Hensen-Voelcker test | Medicine | A demonstration of the action of the ciliary muscle in accommodation by inserting needles through the sclera into the ciliary muscle. Stimulation of the muscle causes a backward movement of the free ends of the needles, indicating a forward movement of their points. Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||