descent
US /dɪˈsent/
UK /dɪˈsent/

1.
penurunan, turun
an act of moving downwards, dropping, or falling
:
•
The plane began its gradual descent into the airport.
Pesawat itu memulakan penurunan beransur-ansurnya ke lapangan terbang.
•
The mountain climber made a slow descent from the peak.
Pendaki gunung itu membuat penurunan perlahan dari puncak.