Noun
The word is derived from haustorium
of Haustorium
Source: Webster's dictionaryDiagram illustrating how Cuscuta uses haustoria to penetrate the vascular system of its host plant and remove sugars and nutrients from the host's phloem. Source: Internet
If the host contains food beneficial to dodder, the dodder produces haustoria that insert themselves into the vascular system of the host. Source: Internet
Some parasitic fungi form haustoria that function in absorption within the host cells. Source: Internet