RAREFACTIONS
17
Scrabble
19
WWF
R(1) A(1) R(1) E(1) F(4) A(1) C(3) T(1) I(1) O(1) N(1) S(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- A reduction in the density of a material, especially that of a fluid.
Source: Wiktionary
