# Difference between a nomenclature section and a glossary

This is not a technical question. I'm writing a thesis and I have found out about MakeIndex, which allows building a glossary and the nominal package, which helps making a nomenclature section.

So, what's the difference between the two? What kind of definitions fit into one or the other? No difference?

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A nomenclature, on the other hand, should show the reader how your particular document (formally) defines notations, terms and symbols that are ambiguous in general. This is particularly useful for scientific papers. Papers in mathematics or computer science, for example, depend heavily on exact definitions of e.g. the + operator or the letter \gamma. They are also notorious for each having their own interpretation of otherwise generic terms like 'asymmetric' (math), 'strongly typed' (computer science) or 'kingdom' (politics, biology).
It's new to me that nomencl offers special support for chemical symbols. In fact there is no reference at all to chemistry in the nomencl documentation. Otherwise: nice answer. –  clemens Oct 18 '12 at 16:16
I wasn't speaking of nomencl specifically. To be honest with you, I based this 'claim' on a quick ctan search: ctan.org/search/… ;-) –  mhelvens Oct 18 '12 at 20:00