tungstic

tung·stic

T0412300 (tŭng′stĭk)adj. Of, relating to, or containing tungsten, especially with valence 6.
[tungst(en) + -ic.]

tungstic

(ˈtʌŋstɪk) adj (Elements & Compounds) of or containing tungsten, esp in a high valence state[C18: from tungst(en) + -ic]