Phil in SF quoted Nothing to Lose by Lee Child (Jack Reacher, #12)
Two lonely towns in Colorado: Hope and Despair. Between them, twelve miles of empty road. …
DU dust was believed to be strongly hygroscopic.
— Nothing to Lose by Lee Child (Jack Reacher, #12) (Page 938 - 939)
New word: hygroscopic
(Of a substance) tending to absorb moisture from the air.