SPINOUS /spaɪnəs/ Scrabble 9 Words With Friends 12 Definition adjective having spines. — synonyms: spiny adjective shaped like a spine or thorn. — synonyms: acanthoid, acanthous Examples “the spinous processes of the lumbar vertebrae” See all 76 words you can make from SPINOUS → 7-letter words Words starting with S Words ending with S ← Unscramble different letters