SULCUS /ˈsʌl.kəs/ Scrabble 8 Words With Friends 12 Scrabble letter values: S1U1L1C3U1S1 = 8 Definition noun (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain. See all 8 words you can make from SULCUS → 6-letter words Words starting with S Words ending with S ← Unscramble different letters