ˈthēsēəm, thə̇ˈsīəm noun
Usage: capitalized
Etymology: New Latin, from Latin thesium, thesion bastard toad flax, from Greek thēseion, probably from neuter of thēseios of Theseus, from Thēseus Theseus, mythological Greek hero
: a large genus of Old World root-parasitic herbs of the family Santalaceae with small linear or scalelike leaves and diclinous flowers — see bastard toadflax