‘丙火’ (bǐng huǒ) is a technical term from traditional Chinese cosmology and the Five Phases (Wǔ Xíng) theory, where it denotes the third of the Ten Heavenly Stems (‘Bing’) combined with the Fire element. Though ‘Bing’ itself is a neutral stem label, its intrinsic association with Fire makes ‘Bing Fire’ a standard designation in Four Pillars of Destiny (Bāzì) astrology and classical medicine. The character 丙 originally meant ‘third in order’ and was later assigned to Fire due to symbolic correspondences—such as brightness, upward movement, and midday heat.

This term appears almost exclusively in specialized contexts: analyzing birth charts, diagnosing constitutional imbalances in Traditional Chinese Medicine (TCM), or interpreting seasonal energy shifts. It does not refer to literal fire or any animal; however, it is loosely linked to the ‘Horse’ (a Fire-associated zodiac animal) in certain astrological pairings—hence its inclusion under ‘Animals’ as a contextual domain rather than a zoological one.