I have to be proud that I am the second Google result for it! (And the first, provided you misspell it like I did).

I think it was ravenworks that suggested to me the only conceivable thing it might be was a misspelling of "avascular", a possible mistranslation with the intent to indicate that something was undead (as the word means... not related to blood)... but imagining what this game is thinking at any time is a dangerous road to go down.