The first edition of this dictionary, compiled by F.J.M. Wijnekus and published in 1967, was the result of years of systematic collection and preparation of thousands of terms and expressions which were until then not to be found in any other dictionary. The material was correlated for use in his daily work and, as the reputation of his private collection spread, there was an increasing demand for access to these findings. Until 1967 there was no comprehensive multilingual dictionary on the subject; former publications were incomplete and out of date and lacked clear definition - often leading