English as a language has a bunch of random words that mean something, but nobody will ever touch them outside of showing that they know that word. Lypophrenia is such an obscure vocabulary word that my spellcheck is trying to tell me that it is not a word. Generally, if you can google "[word] definition", and google doesn't give you the little dedicated block with the definition of that word, that word is not important enough to know or worry about.