re·fine·ment

[ri-fahyn-muhnt]
noun
1.
fineness or elegance of feeling, taste, manners, language, etc.
2.
an instance of refined feeling, manners, etc.
3.
the act or process of refining.
4.
the quality or state of being refined.
5.
a subtle point or distinction.
6.
subtle reasoning.
7.
an improved, higher, or extreme form of something: a refinement of the old system.
8.
Mathematics. a set whose elements include the elements of a given set.

Origin:
1605–15; refine + -ment

non·re·fine·ment, noun
pre·re·fine·ment, noun
self-re·fine·ment, noun
su·per·re·fine·ment, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To refinement
00:10
Refinement is always a great word to know.
So is rounding. Does it mean:
the process of replacing a number by another number of approximately the same value but having fewer digits
an average, especially the arithmetic average
Collins
World English Dictionary
refinement (rɪˈfaɪnmənt) [Click for IPA pronunciation guide]
 
n
1.  the act of refining or the state of being refined
2.  a fine or delicate point, distinction, or expression; a subtlety
3.  fineness or precision of thought, expression, manners, etc; polish or cultivation
4.  a device, change, adaptation, etc, designed to improve performance or increase efficiency

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
Close up, it is easy to distinguish wood from its modern rivals by both its
  richer texture and its refinement of detail.
Likewise, the way some of the dinosaurs moved could use a little more
  refinement.
The message was of utter refinement that, even in the parade of long gowns,
  kept a supple and personal elegance.
Pardon my unruly critical thought processes, but in my experience only ideas
  that can survive criticism and refinement are useful.
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