CATATONIA Scrabble 11 Words With Friends 13 Definition noun extreme tonus. noun a form of schizophrenia characterized by a tendency to remain in a fixed stuporous state for long periods. — synonyms: catatonic_schizophrenia, catatonic_type_schizophrenia See all 83 words you can make from CATATONIA → 9-letter words Words starting with C Words ending with A ← Unscramble different letters