I'm using glossaries and would like to use a custom short form plural (it should be the same as the short form singular).
I've tried using \glsshortpluralkey, but this only affects how the short form plural appears the first time the acronym is used (MWE below). I've also tried using \glsshortpluralaccess and \glsshortplural, but both are 'undefined control sequences'. I'm using TeX Live 2013.
\documentclass{article}
\usepackage[colorlinks]{hyperref}
\usepackage[acronym]{glossaries}
\makeglossaries
\newacronym[\glsshortpluralkey=cM]{cM}{cM}{centiMorgan}
\begin{document}
First use: \glspl{cM}. Second use: \glspl{cM}.
\printglossary[type=acronym,title=List of Abbreviations]
\end{document}
Edited to clarify: the desired output is:
First use: centiMorgans (cM). Second use: cM.

\newacronym[plural={cM}, \glsshortpluralkey={cM}]{cM}{cM}{centiMorgan}is slightly easier. – user49858 Apr 15 '14 at 12:30\newacronymworked for me, and I had to resort to a\newglossaryentryas shown in https://tex.stackexchange.com/a/128419/11429 to define "user equipment (UEs)" in "plural". – berezovskyi Dec 22 '21 at 14:44\glsentryfullpl{cM}. Instead I had to set the long form vialongplural=centriMorgans, cf. https://tex.stackexchange.com/a/428266/65754 – Stanley F. Apr 12 '22 at 12:13