Spermaceti whale is a term used to refer to a type of whale that produces spermaceti oil, a waxy substance found in their heads and used in the production of candles, cosmetics, and lubricants. It is also known as the "cachalot," a name derived from the French word "cachalot" meaning big teeth, due to the whale's large teeth. Another synonym for the spermaceti whale is the "white whale," a term popularized by Herman Melville's famous novel, Moby Dick. Other common synonyms include "giant sperm whale," "bullhead whale," and "great-headed whale." Regardless of the name or synonym used, the spermaceti whale remains a fascinating and awe-inspiring creature of the ocean.