A Quick reference
A Dictionary of Weights, Measures, and Units
Metric As a lower-case prefix a-, see atto-.
length. Metric Correctly Å, see angstrom.
area. As a, see are; see ...
a.u. Quick reference
A Dictionary of Weights, Measures, and Units
sub-atomic physics. See atomic unit.
aanom Quick reference
A Dictionary of Weights, Measures, and Units
[annum]
time. Anomalistic year; see anomalistic and year.
ab- Quick reference
A Dictionary of Physics (8 ed.)
A prefix attached to the name of a practical electrical unit to provide a name for a unit in the electromagnetic system of units (...
abampere Quick reference
A Dictionary of Weights, Measures, and Units
abcoulomb Quick reference
A Dictionary of Weights, Measures, and Units
electric charge. Symbol abC. Metric-c.g.s. The absolute coulomb of the e.m.u. system, for a steady current identically s⋅abA. 1 abC = 10 C....
abdaraf Quick reference
A Dictionary of Weights, Measures, and Units
electric elastance. Symbol abD. Metric-c.g.s. The absolute daraf of the e.m.u. system, for a steady current identically abV/abC, and identically reciprocal abfarard. 1 abD = 1 abF...
aberration Quick reference
A Dictionary of Physics (8 ed.)
abfarad Quick reference
A Dictionary of Weights, Measures, and Units
electric capacitance. Symbol abF. Metric-c.g.s. The absolute farad of the e.m.u. system, for a steady current identically abC/abV, and identically reciprocal abdaraf. 1 abF = 1 GF....
abhenry Quick reference
A Dictionary of Weights, Measures, and Units
electromagnetic inductance. Symbol abH. Metric-c.g.s. The absolute henry of the e.m.u. system, for a steady current identically abV/abA/second. 1 abH = 1 nH....
abmho Quick reference
A Dictionary of Weights, Measures, and Units
electric conductance. Metric-c.g.s. The absolute mho of the e.m.u. system, for a steady current identically abA/abV, and identically reciprocal abΩ. 1 abmho = 1 GS....
abohm Quick reference
A Dictionary of Weights, Measures, and Units
electric resistance. Symbol abΩ. Metric-c.g.s. The absolute ohm of the e.m.u. system, for a steady current identically abV/abA, and identically reciprocal abmho. 1 abΩ = 1 nΩ....
absolute Quick reference
A Dictionary of Weights, Measures, and Units
Within metrology generally, the qualifier ‘absolute’ indicates using mass rather than weight, i.e. force, as a basic dimension; hence an absolute system contrasts with a ...
absolute Quick reference
A Dictionary of Physics (8 ed.)
absolute centesimal thermodynamic scale Quick reference
A Dictionary of Weights, Measures, and Units
temperature. See kelvin scale.
absolute magnitude Quick reference
A Dictionary of Weights, Measures, and Units
astronomy. Symbol M. See stellar magnitude.
absolute pitch Quick reference
A Dictionary of Physics (8 ed.)
The ability of a person to identify and reproduce a note without reference to a tuned musical instrument.
absolute practical system Quick reference
A Dictionary of Weights, Measures, and Units
electromagnetics. Metric See absolute system and practical units.
