The Collaborative International Dictionary
mouezzin
muezzin \mu*ez"zin\ (m[-u]*[e^]z"z[i^]n), n. [Ar.] A Mohammedan crier of the hour of prayer; the Moslem official of a mosque who summons the faithful to prayer from a minaret five times a day. [Written also mouezzin, mueddin, muazzin, mu'adhdhin, and muwazzin.]
Wiktionary
mouezzin
n. (alternative form of muezzin English)