areolation


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a·re·o·la

 (ə-rē′ə-lə, âr′ē-ō′lə)
n. pl. a·re·o·lae (-lē′) or a·re·o·las
1. A small ring of color around a center portion, as about the nipple of the breast or the part of the iris surrounding the pupil of the eye.
2. A small space or interstice in a tissue or part, such as the area bounded by small veins in a leaf or the wing of an insect. In both senses also called areole.

[Latin āreola, small open space, diminutive of ārea, open place; see area.]

a·re′o·lar, a·re′o·late (-lĭt) adj.
a·re′o·la′tion n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Other features such as the areolation of the hypotheca wall are characteristic of only a few taxa (i.e.