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{adj: nilpotent} equal to zero when raised to a certain power

{adj: no} quantifier; used with either mass nouns or plural count nouns for indicating a complete or almost complete lack or zero quantity of
"we have no bananas"
"no eggs left and no money to buy any"
"have you no decency?"
"did it with no help"
"I'll get you there in no time"
<-> all, some

{adj: zero} indicating an initial point or origin

{n: Greenwich Meridian} the meridian passing through Greenwich; was internationally adopted as the earth's zero of longitude in 1884

{n: Kelvin scale, absolute scale} a temperature scale that defines absolute zero as 0 degrees; water freezes at 273.16 degrees and boils at 373.16 degrees

{n: Kirchhoff's laws} (physics) two laws governing electric networks in which steady currents flow: the sum of all the currents at a point is zero and the sum of the voltage gains and drops around any closed circuit is zero

{n: absolute zero} (cryogenics) the lowest temperature theoretically attainable (at which the kinetic energy of atoms and molecules is minimal); 0 Kelvin or -273.15 centigrade or -459.67 Fahrenheit

{n: astatic coils} an arrangement of coils used in sensitive electrical instruments; the coils are arranged to give zero resultant external magnetic field when a current passes through them and to have zero electromotive force induced in them by an external magnetic field

{n: billion, one million million, 1000000000000} the number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed in the United States is frequently seen

{n: deuterium, heavy hydrogen} an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)

{n: diagonal matrix} a square matrix with all elements not on the main diagonal equal to zero

{n: love} a score of zero in tennis or squash
"it was 40 love"

{n: number} a concept of quantity derived from zero and units
"every number has a unique position in the sequence"

{n: origin} the point of intersection of coordinate axes; where the values of the coordinates are all zero

{n: phase, phase angle} a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle

{n: prime meridian} meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich longitude in England)

{n: quadrillion} the number that is represented as a one followed by 24 zeros
"in England they call a septillion a quadrillion"

{n: straight line} a line traced by a point traveling in a constant direction; a line of zero curvature
"the shortest distance between two points is a straight line"
<-> curve

{n: trillion, one million million million} the number that is represented as a one followed by 18 zeros
"in England they call a quintillion a trillion"

{n: trillion, one million million, 1000000000000} the number that is represented as a one followed by 12 zeros
"in England they call a trillion a billion"

{n: zero-sum game} a game in which the total of all the gains and losses is zero

{n: zeroth law of thermodynamics} the law that if two bodies are in thermal equilibrium with a third body then the first two bodies are in thermal equilibrium with each other

{v: range in, home in, zero in} direct onto a point or target, especially by automatic navigational aids

{v: read, register, show, record} indicate a certain reading ; of gauges and instruments
"The thermometer showed thirteen degrees below zero"
"The gauge read `empty'"

{v: zero, zero in} adjust (as by firing under test conditions) the zero of (a gun)
"He zeroed in his rifle at 200 yards"

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