1. of, relating to, or functioning as a haustorium; used by parasitic plants to absorb nutrients from host plants
Usage: biology; botany

Examples

• The haustorial roots of the mistletoe penetrate deep into the host tree's tissues.
• Parasitic plants develop haustorial structures to extract water and minerals from their hosts.
• The haustorial apparatus allows dodder to feed on the sap of surrounding plants.
• Scientists studied the haustorial connections between the parasite and its host plant under the microscope.