a unit of geologic time equal to one billion years

a unit of length equal to one ten-billionth of a meter

billion cubic feet

billion

billion electron volts

a theory in astronomy: the universe originated billions of years ago in an explosion from a single point of nearly infinite energy density

one whose wealth is estimated at a billion or more (as of dollars or pounds)

billion (10^9) combining form

one billion bits

1024 megabytes or 1,073,741,824 bytes

a unit of measure for the calculating speed of a computer equal to one billion floating-point operations per second

a unit of frequency equal to one billion hertz

a unit of power equal to one billion watts

one billionth (10^-9) part of

one billionth of a gram

one billionth of a meter

a very brief moment

parts per billion

a synchrotron in which protons are accelerated by means of frequency modulation of the radio-frequency accelerating voltage so that they have energies of billions of electron volts

the explosion of a star in which the star may reach a maximum intrinsic luminosity one billion times that of the sun

an isotope of uranium of mass number 238 that is the most stable uranium isotope and that has a half-life of 4.5 billion years