dorsal

adj [attrib 作定语] (anatomy 解) of or on the back of an animal or a plant （动植物的）背部的, 背侧的, 背上的: the dorsal fin, eg of a shark 背鳍（如鲨鱼的）. =>illus at fish 见fish之插图. Cf 参看 ventral.

door-way, doorbell, doorknob, doorman, doormat, doornail, doorpost, doorstep, doorstop, doorway, dope, dopey (also dopy), Doric, dorm, dormancy, dormant, dormer, dormitory, dormitory town, dormouse, dory, DOS, dosage, dose, doss, doss-house, dosser, dossier, dot, dot matrix, dotage, dote, doting, dotingly, dotted line, dottiness, dottle, dotty, double, double agent,