from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a cloud species which shows vertical formations giving a crenellated appearance. Associated with cirrus, cirrocumulus, altocumulus, and stratocumulus genera.
Sorry, no etymologies found.
Many of us have admired dreamy, turreted formations without knowing that they are called "castellanus."
The title is equivalent to that of castellan (Lat. _castellanus_) or _châtelain_