medical
: thickened, dimpled skin that resembles the rind of an orange and is often associated with some forms of breast cancer
There was a mass, 6 to 7 cm in diameter, in the upper outer quadrant of the right breast … and the overlying skin had peau d'orange changes, without erythema.—José Baselga et al., New England Journal of Medicine, 24 May 2012 And when a swelling stretches the skin so much that pores become visible, doctors call it peau d'orange, or "skin of an orange."—Patricia Volk, New York Times, 19 Aug. 1990
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Merriam-Webster unabridged
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