Instead of using a common word like "sad", one can use "morose" to make a more vivid image. Or in professional fields words like "pedagogy" are used instead of a more common word like "education". We usually see this kind of vocabulary in academic writing or literature, which require ideas to be expressed more precisely than normally.
Is there a name for this? I have thought about:
- advanced vocabulary, but it doesn't express the idea of giving the speakers or the writers "liberty of thinking"
- GRE vocabulary. In fact I had the idea of this kind of vocabulary when I studied for GRE, but I don't think taking the name of a test is a good use here.
- academic vocabulary. Well, a large portion of it is academic vocabulary, but "morose" is not an academic vocabulary, is it?
Example usage: by learning the ______ vocabulary, my writing is sharper and mightier.
I would like the word to convey the sense of "making the message more precise"