noun
- A sky filled with rows of cirrocumulus or small altocumulus clouds. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). mackerel sky. Retrieved September 21, 2026, from http://smartdefine.org/mackerel_sky/definitions/1227117 |
| Chicago | WordNet. 2010. "mackerel sky" http://smartdefine.org/mackerel_sky/definitions/1227117 (accessed September 21, 2026). |
| Harvard | WordNet 2010, mackerel sky, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/mackerel_sky/definitions/1227117>. |
| MLA | WordNet. "mackerel sky" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/mackerel_sky/definitions/1227117> |