Grattage. a method of drawing by scratching paper or cardboard that has been covered with india ink with a pen or a sharp instrument. The grattage process is reminiscent of scraping an oiled surface in lithography.rattage. a method of drawing by scratching paper or cardboard that has been covered with india ink with a pen or a sharp instrument. The grattage process is reminiscent of scraping an oiled surface in lithography.
3. (Zoology) of or relating to the surface of an animal, such as a jellyfish, on which the mouth is situated. 4. (Medicine) denoting a drug to be taken by mouth Compare parenteral: an oral contraceptive.
Adjective [edit]. dorsal â(not comparable). ( 1 anatomy) With respect to, or concerning the side in which the backbone is located, or the analogous side of an invertebrate. ( 2 of a knife) Having only one sharp side. ( 3 anatomy) Relating to the top surface of the foot or hand.( 4 linguistics, of a sound) Produced using the dorsum of the tongue.( 5 botany) Relating to the 6  ... (borsal â(not comparable). ( 1 anatomy) With respect to, or concerning the side in which the backbone is located, or the analogous side of an invertebrate. ( 2 of a knife) Having only one sharp side. ( 3 anatomy) Relating to the top surface of the foot or hand. ( 4 linguistics, of a sound) Produced using the dorsum of the tongue. ( 5 botany) Relating to the 6  ... (b