(Metric) As a lower-case prefix a-, see atto-.
length (Metric) Correctly Å, see angstrom.
area As a, see are; see SI alphabet for prefixes, notably ha = hectare.
time As a, see annum, i.e. year.
electromagnetics As A, see ampere; see also SI alphabet for prefixes.
astronomy As A, see astronomical unit (of length).
informatics In hexadecimal notation as A for 10, the first digit after 9.
See pitch.Join the WikiAnswers Q&A community. Post a question or answer questions about "A" at WikiAnswers.
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 | Measures and Units. A Dictionary of Weights, Measures, and Units. Copyright © Donald Fenna 2002, 2004. All rights reserved. Read more |
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