Radical 212, 龍, 龙, or 竜 meaning "dragon", is one of only two of the 214 Kangxi radicals that are composed of 16 strokes. The character arose as a stylized drawing of a Chinese dragon, and refers to a version of the dragon in each East Asianculture:
It occurs as a phonetic complement in some fairly common Chinese characters, for example 聾 = "deaf", which is composed of 龍 "dragon" and the "ear" 耳 radical, 耳, pronounced similarly to 龍: "dragon gives sound, ear gives meaning".
Fazzioli, Edoardo (1987). Chinese calligraphy : from pictograph to ideogram : the history of 214 essential Chinese/Japanese characters. calligraphy by Rebecca Hon Ko. New York: Abbeville Press. ISBN0-89659-774-1.