aquatint

n 1 [U] process of etching on copper using nitric acid 铜版画飞尘腐蚀法; 凹版腐蚀制版法. 2 [C] picture made in this way 用飞尘腐蚀法印制的图画.

April, April Fool, April Fool's Day, apron, apropos, apropos of, apse, apstream, apt, aptitude, aptitude test, aptly, aptness, Aqualung, aquamarine, aquaplane, Aquarian, aquarium, Aquarius, aquatic, aqueduct, aqueous, aquifer, aquiline, Arab, arabesque, Arabia, Arabian, Arabic, arabic numerals (also arabic figures), Arabist, arable, arachnid, arbiter, arbitrarily, arbitrariness, arbitrary, arbitrate, arbitration, arbitrator,