Noun. 1. Ahura – (Zoroastrianism) title for benevolent deities. Mazdaism, Zoroastrianism – system of religion founded in Persia in the 6th century BC by Zoroaster; set forth in the Zend-Avesta; based on concept of struggle between light (good) and dark (evil) Hindu deity – a deity worshipped by the Hindus.Read More →