1 noctilucent | Definition of noctilucent

noctilucent

adjective
noc·​ti·​lu·​cent | \ -ᵊnt\

Definition of noctilucent

1 [ from noctilucence, after such pairs as English translucence : translucent ] : bioluminescent
2 [ noct- + lucent ] : visible or glowing at night — see noctilucent cloud