The term IRIS PART refers to the parts of the iris, a part of the eye. The crossword solutions for this term are AREOLE (6 letters), PUPIL (5 letters), AREOLA (6 letters), STEM (4 letters), PETAL (5 letters), and UVEA (4 letters). The areole is the colored ring around the PUPIL, which is the central opening in the iris. The areola is the pigmented area surrounding the PUPIL. The STEM is the thin stalk that connects the PETAL to the plant. The PETAL is the thin, colorful, and often fragrant part of the flower. The uvea is the middle layer of the eye, which includes the iris. The SEPAL is the outermost layer of the flower, which encloses and protects the petals.