The only word in the Oxford English Dictionary which fits those letters is haustoria - and I doubt that is what you want!

Haustoria = A slender projection from the root of a parasitic plant, such as a dodder, or from the hyphae of a parasitic fungus, enabling the parasite to penetrate the tissues of its host and absorb nutrients from it. 

The question was asked previously, with a completely different set of letters: