opaline
noun
Definitions
A clear to white liquid secreted by sea hares (genus Aplysia) that becomes viscous upon contact with water
Example: The attack on a sea hare by a spiny lobster causes release of the whitish opaline, followed the co-release of both opaline and ink.
Any of several minerals resembling opal, including a variety of yellow chalcedony
Opal glass
adjective
Definitions
Resembling opal in its iridescence; having a milky white iridescence.