Akademik

low density
noun
a rarified quality (Freq. 1)
-

the tenuity of the upper atmosphere

Syn: ↑rarity, ↑tenuity
Derivationally related forms: ↑tenuous (for: ↑tenuity), ↑rare (for: ↑rarity)
Hypernyms: ↑density, ↑denseness

Useful english dictionary. 2012.