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A

A   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

Metric As a lower-case prefix a-, see atto-.

length. Metric Correctly Å, see angstrom.

area. As a, see are; see ...

a-

a-   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

Metric As symbol see A, a.

a.u.

a.u.   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

sub-atomic physics. See atomic unit.

aanom

aanom   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

[annum]

time. Anomalistic year; see anomalistic and year.

aastr

aastr   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

time. Astronomical year.

ab-

ab-   Quick reference

A Dictionary of Physics (8 ed.)

Reference type:
Subject Reference
Current Version:
2019
Subject:
Science and technology, Physics
Length:
71 words

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

abampere   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004
[absolute ampere] (biot) electric current. Symbol abA. Metric-c.g.s.-e.m.u 1 abA = the constant current that produces, when maintained in two parallel conductors of negligible ... More
abcoulomb

abcoulomb   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

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

abdaraf   Quick reference

A Dictionary of Weights, Measures, and Units

Reference type:
Subject Reference
Current Version:
2004

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

aberration   Quick reference

A Dictionary of Physics (8 ed.)

Reference type:
Subject Reference
Current Version:
2019
Subject:
Science and technology, Physics
Length:
218 words
Illustration(s):
1
1. (in optics) A defect in the image formed by a lens or curved mirror. In chromatic aberration the image formed by a lens (but not a mirror) has coloured fringes as a result ... More

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