龍

longan (Euphoria longana)

something in the shape of a dragon's head (esp. a helmet crest)

cloud dragon

Food, cooking

xiaolongbao (eastern Chinese steamed bun); soup dumpling

golden dragon

Abbreviation

oolong (tea)

dragon and tiger; two mighty rivals

blue dragon

Azure Dragon (god said to rule over the eastern heavens)

Astronomy

seven mansions (Chinese constellations) of the eastern heavens

large horse with a bluish-leaden coat

shape of an old pine tree

dragon's den

auspicious place for a temple, town, etc. to be built (feng shui)

Japanese mythology

mizuchi; aquatic, dragon-like beast with four feet, horns and poisonous breath

unfulfilled genius; dormant talent

dragon-slaying

Kawasaki Ki-45 (WWII heavy fighter aircraft)

unrecognized genius; exceptional person hidden among the masses

reclining dragon

Video games

shoryuken (uppercut move in the Street Fighter series)

Yinglong; dragon and rain deity in Chinese mythology

ichthyosaur

Imperial countenance; face of the Emperor

Word usually written using kana alone

agave; maguey

American aloe; century plant (Agave americana)

rising dragon

Word usually written using kana alone

white saddle (Helvella crispa); elfin saddle; common helvel

dragon's fang

dragon flute; medium-pitched bark-covered bamboo transverse flute with seven holes, used in gagaku

ambergris

hand-operated fire pump

water pistol; squirt gun; water gun

Okinawan dragon boat race

Formal or literary term

dragon that has ascended to the heavens; person who has acquired immense wealth and power