炉火纯青

Traditional form:

爐火純青

Pinyin (reading):

lúhuǒchúnqīng

Definitions:

• lit. the stove fire has turned bright green (allusion to Daoist alchemy) (idiom)
• fig. (of an art, a technique etc) brought to the point of perfection

Characters:

• 炉 - fireplace, furnace, oven, stove
• 火 - fire, flame; to burn; anger, rage
• 纯 - pure, clean; simple, genuine
• 青 - nature's color; blue, green, black; young

Traditional characters:

• 爐 - fireplace, furnace, oven, stove
• 火 - fire, flame; to burn; anger, rage
• 純 - pure, clean; simple, genuine
• 青 - nature's color; blue, green, black; young