Is etymology so relevant? The lexicon of the word is scientific jargon; its language is English.
I think you're missing the point. OP claimed that English is the language of science in most other languages. The parent showed, using an example from Spanish, that the actual language of science in most languages is Latin.
It is neither here nor there whether or not the language is latin-derived. And regardless, it's not possible to distinguish whether or not it is 'English' or 'Latin' from examples from non-latin-derived languages because English-speaking scientific establishments, up until the 1800s (and even to this day in some fields like botany, etc.) uses Latin nomenclature in scientific work. Most of the examples that you can find, the examples in the foreign language, English, and Latin are all going to match (I believe the exception is Medical German -- practitioners in Germany have to learn both the German and Latin versions) and it is difficult to prove without specific work into the foreign etymology, that in that case the foreign language is following Latin and not English!
In case I haven't made myself clear, it's trivial to take your Swahili question to demonstrate the point. According to Google Translate (I couldn't find a Wiktionary entry for it) in Swahili it is "asidi deoxyribonucleic". Now, is this because it follows the English form or the Latin form? You can't know without doing some digging into the Swahili Etymology.
But even for scientific writing, my dictionary translates DNA as 脱氧核糖核酸, where 脱 means peel off, 氧 means oxygen, and 核糖核酸 means RNA, so DNA = de-oxy-RNA. As for RNA, 核糖 means ribose and 核酸 means nucleic acid. And in 核酸, 核 means nucleus/core/pip and 酸 means sour/acid, so again the meaning of the characters joined together are simply the sum of their parts. That's always been the case in my limited experience with medical words in Mandarin.