from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A cyclonic type wind that is common in Egypt and Sudan towards the end of March and April of each year. Hot weather ensues, as well as sandstorms.
- n. According to the Turkish Calendar of Storms a storm of three days, to be expected around February 1.
- n. An oppressive, hot, dusty, south or south-east wind occurring in North Africa, the Arabian Peninsula, and the Levant, intermittently in late winter through late spring.
The name is derived from the Egyptian Arabic خماسين (khamasīn, "fifties"), from Arabic خمسون (khamsūn, "fifty"). (Wiktionary)