dénivellation [[t]deniv(ə)lasjɔ̃[/t]] nf

1) (= écart) (de niveau) difference in level, (d'altitude) difference in altitude

Du village à l'alpage il y a une dénivellation de plus de 800 mètres. — Between the village and the alpine pastures there's a difference in altitude of more than 800 metres.

2) (= pente) ramp

3) (= creux) dip