Ambergris (/ˈæmbərɡriːs/ or /ˈæmbərɡrɪs/, Latin: ambra grisea, Old French: ambre gris), ambergrease or grey amber, is a solid, waxy, flammable substance of a dull grey or blackish colour, produced in the digestive system of sperm whales. The word "amber" is derived from the Arabic word for ambergris, "ʿanbar" (عنبر).
Freshly-produced ambergris has a marine, fecal odour. However, as it ages, it acquires a sweet, earthy scent, commonly likened to the fragrance of rubbing alcohol, without the vaporous chemical astringency. Although ambergris used to be very highly valued by perfumers as a fixative (allowing the scent to last much longer), it has now largely been replaced by synthetic ambroxan....LESS