SYNAPSID /sɪˈnapsɪd/ Scrabble 14 Words With Friends 15 Scrabble letter values: S1Y4N1A1P3S1I1D2 = 14 Definition noun extinct reptile having a single pair of lateral temporal openings in the skull. — synonyms: synapsid_reptile See all 135 words you can make from SYNAPSID → 8-letter words Words starting with S Words ending with D ← Unscramble different letters