Radical 212
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 Asian culture:
Chinese dragon, Lóng in Chinese
Japanese dragon, Ryū or Tatsu in Japanese
Korean dragon, Ryong or Yong in Korean
Vietnamese dragon, Rồng in Vietnamese
It may also refer to the Dragon as it appears in the Chinese zodiac. It is used as the symbol for Tatsu, a roller coaster at Six Flags Magic Mountain, in California.
In the Kangxi Dictionary there are only 14 characters (out of 40,000) to be found under this radical.
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".
Characters with Radical 212
Literature
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. ISBN 0-89659-774-1.