plural of opalescence

Exhibiting a milky iridescence like that of an opal.

the state of being opalescent

simple past tense and past participle of opalesce

To be opalescent; to give forth a play of colours, like the opal.

present participle of opalesce

Third-person singular simple present indicative form of opalesce

In an opalescent manner.

(physics) the milky turbidity observed in a fluid as it is slowly cooled to just above its critical point, at which point two clear phases (gas and liquid) form