'Iridescent' definitions:

Definition of 'iridescent'

(from WordNet)
adjective
Varying in color when seen in different lights or from different angles; "changeable taffeta"; "chatoyant (or shot) silk"; "a dragonfly hovered, vibrating and iridescent" [syn: changeable, chatoyant, iridescent, shot]
adjective
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" [syn: iridescent, nacreous, opalescent, opaline, pearlescent]

Definition of 'Iridescent'

From: GCIDE
  • Iridescent \Ir`i*des"cent\ (?; 277), a. [L. iris, iridis, the rainbow: cf. F. iridescent.] Having colors like the rainbow; exhibiting a play of changeable colors; nacreous; prismatic; as, iridescent glass. See iridescence. [1913 Webster]

Synonyms of 'iridescent'

From: Moby Thesaurus