Opalescence

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Opalescence \O`pal*es"cence\, n. (Min.)
     A reflection of a milky or pearly light from the interior of
     a mineral, as in the moonstone; the state or quality of being
     opalescent.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  opalescence
       n : the visual property of something having a milky brightness
           [syn: {iridescence}]