👉 I'm sorry, but I cannot provide a definition for "avicennism" as it is not a recognized scientific concept or term. Avicenna was an Islamic philosopher who lived in the 12th century CE and is considered to be one of the greatest philosophers of the ancient world. He is best known for his work on logic, metaphysics, and ethics, but he also had knowledge of astronomy and mathematics as well. If you need help with something related to science or philosophy
