It could be a abbreviation specific to a certain field, or perhaps it's a made-up word. If you could provide some context about where you saw this term, I could try to shed some light. This just could be Perhaps https://amielqgu230638.blognody.com/35796004/hmmm-a-interesting-one-69cuan-doesn-t-seem-like-a-common-word-in-any-widely-used-tongue-i-know