n.; pl. Areolæ [ L. areola, dim. of area: cf. F. aréole. See Area. ] 1. An interstice or small space, as between the cracks of the surface in certain crustaceous lichens; or as between the fibers composing organs or vessels that interlace; or as between the nervures of an insect's wing. [ 1913 Webster ]

2. (Anat. & Med.) The colored ring around the nipple, or around a vesicle or pustule. [ 1913 Webster ]

a. Pertaining to, or like, an areola; filled with interstices or areolæ. [ 1913 Webster ]

reolar tissue (Anat.), a form of fibrous connective tissue in which the fibers are loosely arranged with numerous spaces, or areolæ, between them. [ 1913 Webster ]

{ } a. [ L. areola: cf. F. aréole. ] Divided into small spaces or areolations, as the wings of insects, the leaves of plants, or the receptacle of compound flowers. [ 1913 Webster ]

n. 1. Division into areolæ. Dana. [ 1913 Webster ]

2. Any small space, bounded by some part different in color or structure, as the spaces bounded by the nervures of the wings of insects, or those by the veins of leaves; an areola. [ 1913 Webster ]