n. In entomology, a small, generally angular, inclosed space on a surface, as the spaces between the veinlets in the wing of a dragon-fly, or pale spaces between dark lines which form a network. Also areolet.n. In botany, a term sometimes used to designate the meshes of cellular tissue or little distinct angular spaces on a surface.n. In anatomy: Any little cell, area, or space; especially, one of the small interstices in the meshes of areolar tissue and the like, or among minute interlacing vessels, as capillaries. The colored circle or halo about the nipple of the human mammary gland, pink in virgins, and brown of various shades in women who have borne children. The red ring of inflamed tissue surrounding a pustule. Hence, figurativelyn. An aureole.n. In decorative art and manufacture, any plate, tile, or flat panel.n. Also areole.n. A tessellation in the thallus of some lichens.