Dictionaries are essential tools for finding translations and synonyms.
Encyclopedias provide summary information about a certain field or topic. They are an excellent starting point for someone who is not familar with a certain subject.
Techniques de l'ingénieur is a French language encyclopedia that is an excellent source of information for all fields of engineering.
If you are a member (student, professor, researcher, employee, etc.) of the Polytechnique Montréal community, you can access all of the Library's paid electronic resources from off-campus. You just need to configure your browser's proxy server settings.