Spectre

spek′tėr, n. a ghost.— adj. Spec′tral , relating to, or like, a spectre.— n. Spectral′ity , the state of being spectral, a spectral object.— adv. Spec′trally .— n. Spec′tre-bat , a South American leaf-nosed bat or vampire. [L. spectrum , a vision— specĕre , to see.]