6 letters · 7 points in Scrabble
adjective belonging to or on or near the back or upper surface of an animal or organ or part
adjective facing away from the axis of an organ or organism
originFrom Late Middle English dorsal/dorsale, borrowing from Medieval Latin dorsālis (“of or relating to the back”), from dorsum (“the back”) + -ālis (“-al”, adjectival suffix); equivalent to dorsum + -al.
Etymology from Wiktionary, CC BY-SA 3.0