uvea

noun

Etymology: 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”).

1. The middle of the three concentric layers that make up the eye; it is pigmented and vascular, and comprises the choroid, the ciliary body, and the iris.