IPA: /ˈluːsənsi/
KK: /ˈlusənsi/
The quality of allowing light to pass through, making something appear clear or transparent.
The lucency of the glass allowed sunlight to fill the room.
Lucency → It is formed from "lucere" (meaning to shine) and the suffix "-ency" (indicating a state or quality). The word "lucency" refers to the quality of being transparent or allowing light to pass through, thus shining or glowing.
Think of the root 'lucere' which means to shine, and remember that 'lucency' describes the quality of shining through or being transparent.