n.
Function: transitive verb
Date: 14th century
1 a : to affect with or as if with a noxious gas : CHOKE b : to diminish the activity or intensity of < damp ing down the causes of inflation> <liquid damp s out compass oscillations> c : to check the vibration or oscillation of (as a string or voltage)
2 : DAMPEN
intransitive verb : to diminish progressively in vibration or oscillation