Many Latin's lovers across the world would like use the Latin in the today's
life, but they cannot find Latin names for the things of our time.
Answering to your question is not easy. First, we need to know if a name for that (or similar) thing already is documented somewhere.
Please note that the Latin has been actively used in scientific and technical texts until about the 18th century.
It is a difficult hunt: we need to be able Latin reading, to know a bit the argument and where to seek. For example, about electricity I would give a look
to the Latin works of Alessandro Volta.
Whether you have more than one choice, the names masculine and feminine of the
1st and 2nd declension are the best ones because, differently from neuters names, their accusative and nominative cases are different.
This is useful when you have to explain how a machine works and one parts of
the machine acts on another, allowing to do clearer sentences. Example:
"terebra, terebrae" 1st feminine and "terebrum, terebri" 2nd neuter, both mean drill. We can say:
"terebra foramen facit" "drill makes a hole" is a right sentence.
instead in this sentence:
"terebrum foramen facit"
there is no way to recognize what the sentence's subject is, it could be said:
"(ego) terebro foramen facio" "I make a hole by drill".
whether your hunt to the words in the books has not been lucky, we could take
the Italian (or also Spanish, French, Romanian) word of common use for that
thing and, by knowing how over the time the Latin words has been modified, apply to it the reverse transformation. A good false is better than nothing.
the Italian word "televisione" that means television could be reversed back to
"televisio, televisionis" feminine of 3rd declension, whose ablative is just
Moreover, in addition to the names proposed by the Vatican, by the web you can
find many collections of Latin neologisms, the most remarkable I know are:
The Morgan-Owens Neo-Latin Lexicon (English)
Lexicon Latinum hodiernum (German )
Don't forget to visit the Latin version of wikipedia