Definition
Pyrois is an ancient name for the planet Mars, appearing in classical astronomical and astrological terminology. It is also written as Pyroeis and is commonly translated as “fiery” or “fiery one,” reflecting the planet’s reddish appearance. Pyrois does not identify a separate planet, chart point, or specialized placement; it is a historical designation for Mars.
Astrological Meaning
When Pyrois appears in an older astrological source, it should generally be interpreted through the traditional symbolism of Mars. Mars is associated with action, courage, conflict, heat, severing, competition, desire, and the capacity to pursue objectives. Its expression in a natal chart depends on its zodiac sign, house, aspects, sect status, dignity, and rulerships. Consequently, the name Pyrois alone does not add a new interpretive quality beyond directing the reader to Mars and its condition in the chart.
Why It Matters
Recognizing Pyrois helps readers understand classical texts, historical planet lists, and translations that use unfamiliar names. Without this identification, a passage may seem to refer to an obscure celestial body rather than Mars. The term also illustrates how ancient observers connected visible planetary features with symbolic meaning: Mars’s red color supported imagery of fire, intensity, and force. In practical chart interpretation, the historical name is less important than evaluating Mars within the complete astrological context.
Related Encyclopedia Entries
- Traditional Astrology
- Astrological Terminology
- Mars
- Natal Chart


