Nomenclature can be considered as a type of synonyms.

Therefore, I can define a nomenclature as :

\definesynonyms[nomenclature][nomenclatures][\infull]

\setupsynonyms[nomenclature] [criterium=all,location=serried]



here I use location=serried, becasue I found the synonym is not in the same
line ( higher than) the meaning.



But I want a three-column nomenclature list. The first column is the
synonym, the second is the meaning, the third is the si-unit of it, if the
synonym has an unit. Like

------

p             Pressure of xxx              Pa

l              Length of xxx                  m

-------

How to redefine the nomenclature command?