a. 乳白色的, 发乳光的

[医] 乳光的, 乳色的

[ adj ]
having a play of lustrous rainbow colors
<adj.all>
an iridescent oil slicknacreous (or pearlescent) clouds looking like mother-of-pearl
a milky opalescent (or opaline) luster

Opalescent \O`pal*es"cent\, a.
Reflecting a milky or pearly light from the interior; having
an opaline play of colors.