It certainly makes it easier to find in a book or via search. You have one word for what it's called, instead of having some under "Born without a cerebellum," some as "Missing cerebellum," others in "No cerebellum," "Undeveloped cerebellum," etc.
Plus it's more convenient to say. Not a big deal for us, but to people who deal with crazy medical conditions all day long, describing each one in natural language would be imprecise and time consuming.
Though obviously it's not the reason it was adopted, it is kind of neat that using a dead language for scientific terms disambiguates them cleanly for the purposes of searching.
Any live language would have accidental matches (even quoted) where it's just the obvious thing to say, a la "born without a cerebellum".
not a dead language.. greek language is still alive
and indeed it sounds like "born without a cerebellum"
(but to be fair the syntax reminds of medical term)
having dead languages to imprecisely map to a word (but nobody knows that because no one really speaks the dead language) isn't any better. It also creates barriers and wasted time in learning the practice. The average individual has to deal with that folly even more when it comes to law.
Plus it's more convenient to say. Not a big deal for us, but to people who deal with crazy medical conditions all day long, describing each one in natural language would be imprecise and time consuming.