Several words derive from Amun via the Greek form, Ammon, such as ammonia and ammonite. The Romans called the ammonium chloride they collected from deposits near the Temple of Jupiter-Amun in ancient Libya sal ammoniacus (salt of Amun) because of proximity to the nearby temple.[29] Ammonia, as well as being the chemical, is a genus name in the foraminifera. Both these foraminiferans (shelled Protozoa) and ammonites (extinct shelled cephalopods) bear spiral shells resembling a ram's, and Ammon's, horns. The regions of the hippocampus in the brain are called the cornu ammonis – literally "Amun's Horns", due to the horned appearance of the dark and light bands of cellular layers

The Lord of hosts, the God of Israel, said: "Behold, I am bringing punishment upon Amon of Thebes, and Pharaoh and Egypt and her gods and her kings, upon Pharaoh and those who trust in him."

— Jeremiah 46:25 (KJV)