from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Both dry and hot: a xerothermic climate.
- adj. Adapted to or flourishing in an environment that is both dry and hot: xerothermic organisms.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Both hot and dry
- adj. That flourishes in hot, dry conditions
from The Century Dictionary and Cyclopedia
- Dry and hot; arid and warm: describing a climatic condition similar to that of the steppes of southern Russia.
Sorry, no etymologies found.