a form symmetrical about a plane dividing it into two pyramids.
a geometrical form consisting of two pyramids with a common polygonal base
the fourth power. noun (maths) the fourth power
involving the fourth, but no higher, power of the unknown or variable. quartic (def 2). biquadrate. Historical Examples Chambers’s Twentieth Century Dictionary (part 1 of 4: A-D) Various Outlines of Educational Doctrine John Frederick Herbart Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 Various adjective of or relating to the fourth power noun a biquadratic […]
occurring twice in each quarter of a year. adjective occurring twice every three months
consisting of, representing, or combining members of two separate racial groups: a biracial committee on neighborhood problems. having a biological mother from one racial group and a biological father from another: She’s proudly biracial. Contemporary Examples The Mayors Who Can Revive America Tina Brown September 19, 2010 Behind Obama’s Tribute to the Aurora Victims’ Courage, […]