HYPERTONICITY Scrabble 26 Words With Friends 26 Definition noun (of a solution) the extent to which a solution has a higher osmotic pressure than some other. noun (of muscular tissue) the state of being hypertonic. — synonyms: hypertonia, hypertonus See all 637 words you can make from HYPERTONICITY → 13-letter words Words starting with H Words ending with Y ← Unscramble different letters