The term 'PUPIL's Locale' refers to the anatomical structures of the EYE. Specifically, it is composed of the IRIS (4 letters), the EYE (3 letters) and the uvea (4 letters). The IRIS is the colored part of the EYE that controls the amount of light entering the EYE. The EYE is the organ of sight, which is composed of several parts including the cornea, lens, and retina. The uvea is the middle layer of the EYE, which contains the IRIS, ciliary body, and choroid. Together, these three structures form the PUPIL's locale, which is responsible for controlling the amount of light entering the EYE.