Meaning of the word luster in English

What does luster mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

luster

US /ˈlʌs.tɚ/
UK /ˈlʌs.tər/

Noun

the brightness that a shiny surface has:

Example:
a treatment for restoring the luster to dull hair