The Collaborative International Dictionary of English v.0.48:

Halituous \Ha*lit"u*ous\ (h[.a]*l[i^]t"[-u]*[u^]s; 135), a. [L.
   halitus breath, vapor, fr. halare to breathe: cf. F.
   halitueux.]
   Produced by, or like, breath; vaporous. --Boyle.
   [1913 Webster]