Associations to the word «Rarefaction»
Noun
Verb
Wiktionary
RAREFACTION, noun. A reduction in the density of a material, especially that of a fluid
Dictionary definition
RAREFACTION, noun. A decrease in the density of something; "a sound wave causes periodic rarefactions in its medium".
Wise words
When you have spoken the word, it reigns over you. When it
is unspoken you reign over it.