thinning
adjectiveUK /ˈθɪnɪŋ/
US /ˈθɪnɪŋ/
Becoming less thick or less full.
The thinning ice made the pond unsafe to skate on.
OTHER MEANINGS
2. The act of making something thinner or less dense.
The gardener did some thinning of the carrots so the rest could grow bigger.
3. Becoming less crowded or less numerous.
Thinning crowds at the mall signaled that the stores would soon close.
4. Losing hair density, especially on the head.
He noticed thinning hair near his temples.