Webster’s Revised Unabridged Dictionary · 1913
Obconic
Ob·con′ic, Ob·con′ic·al, a. [Pref. ob- + conic, conical.] Conical, but having the apex downward; inversely conical.
Webster’s Revised Unabridged Dictionary · 1913
Ob·con′ic, Ob·con′ic·al, a. [Pref. ob- + conic, conical.] Conical, but having the apex downward; inversely conical.