raréfier
Meanings
Verb
1. to rarefy, make rarer (transitive)
2. become thinner on the ground, become less and further between, become scarce (reflexive)
Examples3
Plus haut nous montons, plus l'air se raréfie.
The higher we go up, the thinner the air becomes.
Quand on monte en altitude, l'air se raréfie.
As you go up higher, the air becomes thinner.
L'atmosphère se raréfie au fur et à mesure que l'on monte en altitude.
The atmosphere becomes thinner as you climb higher.