Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
 noun A linear array of digits that contains a single period, called the decimal point, is possibly preceded by a minus sign (−), and represents a real number, with each successive digit to the right of the decimal point indicating a multiple of the next negative power of 10, and each successive digit to the left of the decimal point indicating a multiple of the next nonnegative power of ten, beginning with 10^{0} = 1. For example, 245.3 represents the real number (2 × 10^{2}) + (4 × 10^{1}) + (5 × 10^{0}) + (3 × 10^{−1}) = 200 + 40 + 5 + ^{3}/_{10} , and −1.04 represents the real number (−1 × 10^{0}) + (−4 × 10^{−2}).
 noun Such an array of digits in which there are no nonzero digits to the left of the decimal point, representing a real number between −1 and 1.
 noun A number written using the base 10.
 adjective Expressed or expressible as a decimal.
 adjective Based on 10.
 adjective Numbered or ordered by groups of 10.
from The Century Dictionary.
 Pertaining to the tenth or to tens; proceeding by tens.
 Relating to tithes.
 noun An expression denoting a decimal fraction by an extension of the decimal notation.
 Of an angle, one sixtieth of a right angle.
 Of an arc, one twohundredandfortieth of a circumference.
 Of time, 0.01 of an hour; 0.6 of an ordinary minute.
from the GNU version of the Collaborative International Dictionary of English.
 adjective Of or pertaining to decimals; numbered or proceeding by tens; having a tenfold increase or decrease, each unit being ten times the unit next smaller
 adjective the common arithmetic, in which numeration proceeds by tens.
 adjective a fraction in which the denominator is some power of 10, as 2/10, 25/100, and is usually not expressed, but is signified by a point placed at the left hand of the numerator, as .2, .25.
 adjective a dot or full stop at the left of a decimal fraction. The figures at the left of the point represent units or whole numbers, as 1.05.
 noun A number expressed in the scale of tens; specifically, and almost exclusively, used as synonymous with a decimal fraction.
 noun a decimal fraction in which the same figure, or set of figures, is constantly repeated; as, 0.354354354;  called also
recurring decimal ,repeating decimal , andrepetend .
from Wiktionary, Creative Commons Attribution/ShareAlike License.
 noun arithmetic, computing, uncountable The
number system that uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.  noun countable A number expressed in this system.
 noun informal A
decimal place .  noun informal A numeral written as a
concatenation of successive negativepowers of thebase .  noun informal A
decimal point .  adjective arithmetic, computing Concerning numbers expressed in decimal or mathematical calculations performed using decimal.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
 adjective numbered or proceeding by tens; based on ten
 noun a number in the decimal system
 noun a proper fraction whose denominator is a power of 10
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/ShareAlike License
Examples

Five hundred men were caught shirking their duty; one out of every ten was selected for execution, which is why the procedure was called decimation analogous to our word decimal, that is, onetenth.

Five hundred men were caught shirking their duty; one out of every ten was selected for execution, which is why the procedure was called decimation analogous to our word decimal, that is, onetenth.

Five hundred men were caught shirking their duty; one out of every ten was selected for execution, which is why the procedure was called decimation analogous to our word decimal, that is, onetenth.

Five hundred men were caught shirking their duty; one out of every ten was selected for execution, which is why the procedure was called decimation analogous to our word decimal, that is, onetenth.

The doubling of the severity for each decimal is simply a rule of thumb, it is accurate enough for a layman I think.

The doubling of the severity for each decimal is simply a rule of thumb, it is accurate enough for a layman I think.

The doubling of the severity for each decimal is simply a rule of thumb, it is accurate enough for a layman I think.

The doubling of the severity for each decimal is simply a rule of thumb, it is accurate enough for a layman I think.

The doubling of the severity for each decimal is simply a rule of thumb, it is accurate enough for a layman I think.

The doubling of the severity for each decimal is simply a rule of thumb, it is accurate enough for a layman I think.
Comments
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missanthropist commented on the word decimal
A Lecherous lickspittle. Also known as 'Avorton_Loqueteux'.
July 16, 2008