noun
- A luminous iridescent cloud at a high altitude that may be seen when the sun is a few degrees below the horizon.
- synonyms: nacreous cloud
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). mother-of-pearl cloud. Retrieved October 2, 2026, from http://smartdefine.org/mother-of-pearl_cloud/definitions/1295942 |
| Chicago | WordNet. 2010. "mother-of-pearl cloud" http://smartdefine.org/mother-of-pearl_cloud/definitions/1295942 (accessed October 2, 2026). |
| Harvard | WordNet 2010, mother-of-pearl cloud, Smart Define, viewed 2 October, 2026, <http://smartdefine.org/mother-of-pearl_cloud/definitions/1295942>. |
| MLA | WordNet. "mother-of-pearl cloud" 23 October 2010. Web. 2 October 2026. <http://smartdefine.org/mother-of-pearl_cloud/definitions/1295942> |