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Affliction – A planet that is aspected by or is associated with malefics is said to be afflicted.
Ahargana – No of days elapsed from the beginning of Kali Era which started from 3102 BC as per the Vedic Calender. Used in Astrology Vedic.
Almanac – A book or table which contains astronomical data including a calender for evey day. The most outstanding almanac was made by Nostradamus in the Middle Ages. In India, vedic astrologers use these almanacs to generate birth charts vedic.
Amavasya – New Moon. Conjunction of the Moon with the Sun, so vitally important in Astrology Vedic.
Amavasi Yoga – Conjunction of Sun and Moon. Mental strength of the native will be weak as Moon becomes weak in digit strength.
Angles – 1,4,7,10 houses. Angular ownership means the lordship of 1,4,7,10 houses. Also known as Quadrants or Kendras in Vedic Astrology.
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Anujanma – The tenth and the nineteenth stars from the birth star. The star owned by the constellational lord.
Apahara or Bhukthi – Sub -period of a planet. In a ruling Dasa there will be sub-periods of other planets.
Aphelion – Away from the Sun. ( Ap – away and Helios – Sun )
More at https://www.eastrovedica.com/html/astrodictionary.htm