Is it possible to introduce an own table of contents in LaTeX? I would like to introduce an own tag, to define some terms in my document. At the end of the document I would like to automatically generate a list of defined terms, with links to the page, where the term was defined.

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Will you only have one reference to the item (at it's first usage/definition)? –  Werner Dec 14 '11 at 22:27
Have a look at How to create an index for custom environments?, if you really mean something like a table of contents. Otherwise you could clarify if you mean an index, a glossary or nomenclature, because there are packages for this. –  Stefan Kottwitz Dec 14 '11 at 22:27
Which documentclass do you use? Please provide a minimal example. –  Marco Daniel Dec 14 '11 at 22:28
You don't have to mention LaTeX in the title. It's the default on this site. What you mean is normally called list-of-X or maybe an index. –  Martin Scharrer Dec 15 '11 at 0:11

In the following example I defined a \Defi command with two mandatory arguments; the first mandatory argument for the term to be defined and the second one, for the definition; the command typesets the term in boldfaced font, adds the term to the auxiliary file .def, and adds a \phantomsection command (this part requires the hyperref package) to get the proper anchor for the hyperlinks. The command \listofdefinitions will actually create the new "List of Definitions" using the kernel \@starttoc command. In the example the entries of the new list will be formatted as the figures in the LoF, but this can also be customized:

\documentclass{article}
\usepackage{hyperref}

\newcommand\Defi[2]{%
\noindent\makebox[1.5cm][l]{%
\textbf{#1}%
\phantomsection% comment out if hyperref is noy used

\makeatletter
\newcommand\listdefinitionname{List of Definitions}
\newcommand\listofdefinitions{%
\section*{\listdefinitionname}\@starttoc{def}}
\makeatother

\begin{document}

\Defi{CDMA}{Code Division Multiple Access}
\Defi{GSM}{Global System for Mobile communication}
\Defi{TDMA}{Time Division Multiple Access}
\Defi{IC}{Integrated Circuit}
\Defi{BUT}{Block Under Test}

\listofdefinitions

\end{document}


Here's a version of the above code using the \newlistof command from the tocloft package:

\documentclass{article}
\usepackage{tocloft}
\usepackage{hyperref}

\newcommand\Defi[2]{%
\noindent\makebox[1.5cm][l]{%
\phantomsection% comment out if hyperref is noy used
\textbf{#1}%

\newcommand\listdefinitionname{List of Definitions}
\newlistof{definition}{def}{\listdefinitionname}

\begin{document}

\Defi{CDMA}{Code Division Multiple Access}\newpage
\Defi{GSM}{Global System for Mobile communication}
\Defi{TDMA}{Time Division Multiple Access}
\Defi{IC}{Integrated Circuit}
\Defi{BUT}{Block Under Test}

\listofdefinition

\end{document}

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Thnx for the nice solution! Is it somehow possible to sort the listofdefinitions before printing it? –  Skip Dec 15 '11 at 12:28
@Skip: if you want to sort the entries, perhaps you could better consider using a package such as nomencl. –  Gonzalo Medina Dec 15 '11 at 14:44

@Gonzalo Medina: Putting \addcontentsline in \makebox slows down processing. And the abbreviation may sometimes be longer than the fixed 1.5cm you have used.

\documentclass{article}
\usepackage{hyperref}

\makeatletter
\newcommand\Defi[2]{%
\noindent
\makebox[\ListOfDefAbbrevLength][l]{\textbf{#1}}%
\csname phantomsection\endcsname
{#2}\par
}
\newdimen\ListOfDefAbbrevLength
\ListOfDefAbbrevLength=1.5cm
\newcommand\ListOfDefName{List of Definitions}
\newcommand\ListOfDefinitions{%
\section*{\ListOfDefName}%
\@starttoc{def}%
}
\makeatother

\begin{document}

\Defi{CDMA}{Code Division Multiple Access}
\Defi{GSM}{Global System for Mobile communication}