Biprism
a triangular prism with an apex angle slightly less than 180°: when illuminated by a point source of light it produces two overlapping beams that form an interference pattern on a screen.
Historical Examples
Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 6 Various
noun
a prism having a highly obtuse angle to facilitate beam splitting
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- Bipropellant
a missile or rocket propellant, composed of fuel and oxidizer, the components of which are kept in separate compartments prior to combustion. noun a rocket propellant consisting of two substances, usually a fuel and an oxidizer Also called dipropellant Compare monopropellant
- Bips
bips billion instruction per second
- Bipyramid
a form symmetrical about a plane dividing it into two pyramids. noun a geometrical form consisting of two pyramids with a common polygonal base
- Biquadrate
the fourth power. noun (maths) the fourth power
- Biquadratic
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 […]