the middle layer of the wall of the eye. the uvea has 3 main parts: (1) the choroid (the tissue layer filled with blood vessels); (2) the ciliary body (the ring of muscle tissue that changes the size of the pupil and the shape of the lens); and (3) the iris (the colored part of the eye). also called uveal tract.
出典:Wiktionary
出典:『Wiktionary』 (2026/03/04 21:02 UTC 版)
From Medieval Latin uvea, from Latin uva (“grape”) + -ea, partial calque of Ancient Greek ῥαγοειδής χιτών (rhagoeidḗs khitṓn, “[covering] like a grape”), from ῥάξ (rháx, “grape”).
uvea (plural uveas)