AMBERGRIS is validvalid

a solid, waxy, flammable substance produced in the digestive system of and regurgitated by sperm whales [n AMBERGRISES]

89,609 of 196,601 in NWL2023·also valid in CSW24

an ash-grey strongly-scented substance, originating in the intestines of the spermaceti whale and used in the manufacture of perfumes [n -ES]