OLECRANON /əˈlɛkɹənən/ Scrabble 11 Words With Friends 15 Definition noun process of the ulna that forms the outer bump of the elbow and fits into the fossa of the humerus when the arm is extended. — synonyms: olecranon_process See all 175 words you can make from OLECRANON → 9-letter words Words starting with O Words ending with N ← Unscramble different letters