Astrology Terms: Letter M

Browse 7 astrology terms starting with the letter M.

Reviewed byKenneth O. Patterson·Astrologer & Content Director

Showing 7 of 92 terms

M

Mars

The planet of action, energy, and desire. Mars rules Aries and co-rules Scorpio, governing drive, aggression, and how you assert yourself.

Learn more: Planets →

Mercury

The planet of communication, intellect, and mental processes. Mercury rules Gemini and Virgo and governs how you think, speak, and process information.

Learn more: Planets →

Midheaven

The highest point of the chart, marking the cusp of the 10th house. The Midheaven (MC) represents career, public image, and life direction.

Learn more: Houses →

Modality

One of three categories (Cardinal, Fixed, Mutable) that describe how zodiac signs initiate and respond to change. Each modality contains four signs.

Learn more: Modalities →

Moon

The luminary governing emotions, instincts, and the subconscious. The Moon changes signs approximately every 2.5 days and represents your emotional nature.

Learn more: Planets →

Mundane Astrology

The branch of astrology concerned with world events, politics, nations, and collective trends rather than individual birth charts.

Mutable Signs

The four signs at the end of each season: Gemini, Virgo, Sagittarius, and Pisces. Mutable signs are adaptable and facilitate transitions between seasons.

Learn more: Modalities →

Frequently Asked Questions

What is an astrology glossary?▾
An astrology glossary is a comprehensive reference that defines the specialized terminology used in astrological practice. It covers zodiac signs, planets, houses, aspects, chart types, and advanced concepts like dignity, decan, and sect, helping beginners and experienced practitioners alike communicate clearly about astrological topics.
How many terms does astrology use?▾
Professional astrology uses hundreds of technical terms. This glossary covers over 80 of the most essential terms, including all 12 zodiac signs, 10 planets, 12 houses, 6 major aspects, 7 chart types, and dozens of key concepts like retrograde, stellium, and chart ruler.
What is the difference between a sign, a planet, and a house?▾
In astrology, planets represent fundamental drives (what energy), signs describe how those drives express themselves (how the energy manifests), and houses indicate where in life the energy plays out (which life area). For example, Venus (love) in Scorpio (intensely) in the 7th house (partnerships) describes someone who loves deeply and passionately in close relationships.
Do I need to know all these terms to read a birth chart?▾
No. Start with the basics: the 12 zodiac signs, the 10 planets, and the concept of houses. As you gain experience, you can explore more advanced terms like aspects, dignities, and chart patterns. This glossary is organized alphabetically so you can look up terms as you encounter them.