Blend of siksik + sinsin.
siksín (Baybayin spelling ᜐᜒᜃ᜔ᜐᜒᜈ᜔)
- (physics) solid
- 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