I, too, majored in science, earned a Ph.D. in biology, and taught at the university level for 35 years. Knowing what words mean was kind of important in my studies, teaching, research, and publishing!
But it wasn’t until the last 15 years or so of my university career when I volunteered to teach a course in science writing that I grew to appreciate just how important words and their meanings are in clearly communicating. I’m afraid you will never convince me to act as though authorities, such as dictionaries, are optional and are just “authorities.”
Yes, it is too much to ask.
Engaging another in terms of his intended meanings is futile when those meanings stray from the meanings understood by the vast majority of English speakers, as reflected in dictionaries.