nacreous (comparative more nacreous, superlative most nacreous)
- Of, or resembling nacre (mother of pearl).
2001, Neil Gaiman, chapter 11, in American gods, Harper Collins, page 323:
- They are covered with a smooth, safe, nacreous layer to let them slip, pearllike, from our souls without real pain.
- Exhibiting lustrous or rainbow-like colors.