luminescent

The firefly is a luminescent insect that lights up the summer night.

用法提示：形容词，描述萤火虫发出冷光的特性。

The watch has luminescent hands so you can read the time in the dark.

用法提示：形容词，修饰“hands”，说明指针会发光。

Some deep-sea creatures are luminescent, glowing to attract prey.

用法提示：形容词，作表语，描述深海生物的特性。