Blend of kubli + tunog + -in.
kubnugin (Baybayin spelling ᜃᜓᜊ᜔ᜈᜓᜄᜒᜈ᜔)
- (physics, neologism) subsonic (having a frequency too low to be audible)
- del Rosario, Gonsalo (1969) Maugnaying Talasalitaang Pang-agham : Ingles-Pilipino [Correlative Word List for Sciences : English-Filipino] (overall work in English and Tagalog), Manila: National Book Store, Inc., →LCCN, →OL