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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

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

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 (7 ed.)

Reference type:
Subject Reference
Current Version:
2015
Subject:
Science and technology, Physics
Length:
68 words

A prefix attached to the name of a practical electrical unit to provide a name for a unit in the

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

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.

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,

aberration

aberration  

n. (in optics) a defect in the image formed by an optical device (e.g. a lens). In chromatic aberration the image has coloured fringes as a result of the different extent to which light of different ...
aberration

aberration   Quick reference

A Dictionary of Physics (7 ed.)

Reference type:
Subject Reference
Current Version:
2015
Subject:
Science and technology, Physics
Length:
215 words
Illustration(s):
1

1. (in optics) A defect in the image formed by a lens or curved mirror. In chromatic aberration the image

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