Definitions for opalineˈoʊ pə lɪn, -ˌlin, -ˌlaɪn
Random House Webster's College Dictionary
o•pal•ineˈoʊ pə lɪn, -ˌlin, -ˌlaɪn(adj.)
like opal; opalescent.
Origin of opaline:
iridescent, nacreous, opalescent, opaline, pearlescent(adj)
having a play of lustrous rainbow colors
"an iridescent oil slick"; "nacreous (or pearlescent) clouds looking like mother-of-pearl"; "a milky opalescent (or opaline) luster"
any of several minerals resembling opal
resembling opal in its iridescence