noun
ambergris
AM-ber-grees/ˈæmbərɡriːs/
A waxy substance from sperm whales used in perfume.
The exhibit displays a waxy piece of ambergris found on a beach.

Etymology
Old French ambre gris means “gray amber,” describing the waxy substance's ashy color. The color term distinguished it from the yellow fossil resin also called amber.
In context
ambergris is soft, waxy, and so highly fragrant and spicy, that it is largely used in perfumery
More examples
- The curator explains how ambergris was used in perfume.
- Researchers identify the unusual lump as ambergris.
- The historical recipe includes a trace of ambergris.
Similar words
- fixative
- Names a perfume function rather than this whale-derived material.