I think that's fair - with the exception of self-descriptive names, and acronyms can further obscure understanding, if you say you've got a Self-Contained Underwater Breathing Apparatus sure, it's for... like breathing, underwater... apparently self-contained which I'm not quite certain the significance of but like "Under water breathing thingy" is a very natural interpretation. SCUBA, to contrast, is much more easily recognizable due to pop-culture, but has no naming inherent to it's name, and is generally not written in a way that implies acronym-ness, "Oh, were you wearing your Scuba tank?"
