opalescent
🇺🇸
/ˌəʊpəˈlesnt/
🇬🇧
/ˌəʊpəˈlesnt/
A surface that shows many colors that seem to change when you look at it from different angles, like an opal.
The seashell had an opalescent sheen that shimmered in the sunlight.
这个海贝壳有一种在阳光照射下闪烁的乳光光泽。