chloasma

from WordNet (r) 3.0 (2006)

chloasma
    n 1: a tan discoloration of a woman's face that is associated
         with pregnancy or with the use of oral contraceptives [syn:
         {chloasma}, {melasma}, {mask of pregnancy}]

from The Collaborative International Dictionary of English v.0.48

Chloasma \Chlo*as"ma\, n. [Gr. ? to be green.] (Med.)
   A cutaneous affection characterized by yellow or yellowish
   brown pigmented spots.
   [1913 Webster]

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