Most Sciences: Uselessly Arcane Nomenclature Everywhere.

While I find modern medical science immensely fascinating, I find it's conceited use of language incredibly off-putting. Medical science is full of latin terms that serve no purpose except to sound fancy; There is no advantage in using words like "proximal/distal" or "dorsal/ventral" over using common distinctions like "near/far" or "top/bottom". Don't get me started on senseless abbreviations or how diseases are named. I'm almost thankful for the American's refusal to learn other languages, since normal english words are starting to replace the nonsensical latin at least in some countries. Oh well.

Enter (molecular) Biology

While we have similarly useless naming conventions in botany, taxonomy and some other branches, Molecular Biology is different. Here we have people who looked at genetic code and found a region that's primarily characterized by repeats of the letters T and A, so instead of the normal "GAATCCGAGAGTTCTCGA" (and so on and so forth) it just reads "TATATATA". You know what they called that region? The TATA-Box, because why not. Later, they found a protein that binds to the TATA-Box. The name of that Protein? TBP - TATA-Binding Protein. 

Similarly straight-forward is the naming of enzymes, which are basically just proteins that interact with stuff. They are conventionally named by taking whatever stuff they interact with, and adding the suffix "-ase". Enzyme that cuts DNA? It's a DNAse. Enzyme that digests protein? It's a Protease. An Enzyme that hydroxylates stuff? You guessed it - it's called a hydroxylase. You have more than one of them? Fine, just number them.

You even get the occasional scientist with a trace of humour: Nobel-Prize winning legend Christiane Nüsslein-Volhard (The woman who basically invented modern genetics) famously named the genes she discovered after what she'd had for lunch that day. Thanks to her we have genes named Schnitzel and Gurke (German for cucumber). Working with fruit flies, she also liked to knock out genes and then name those genes after whatever the resulting flies reminded her of, giving us names like KLF (Cripple-Like-Factor) or Sonic Hedgehog.