A cewar ƙamus, hyperboloid siffa ce ta geometric mai girma uku wacce tayi kama da cones guda biyu waɗanda aka haɗa, kowannensu yana da ɓangaren giciye na hyperbolic. Ana iya samuwa ta hanyar jujjuya hyperbola a kusa da kusurwoyinsa ko kuma ta hanyar haɗa cones guda biyu tare da kusurwa iri ɗaya da axis amma tare da daidaitawa. Hyperboloid yana da zanen gado guda biyu daban-daban, kuma dangane da yanayin yanayinsa, ana iya rarraba shi azaman hyperboloid elliptic ko hyperboloid hyperboloid. Hyperboloids suna da aikace-aikace iri-iri a fannin lissafi, injiniyanci, da kimiyyar lissafi, gami da ƙirar hasumiya mai sanyaya, eriya, da madubai.