Etymology

mega- ‎(“large”) +‎ gametophyte, from gamete +‎ -phyte ‎(“plant”)

Pronunciation

• (Received Pronunciation) IPA^(key): /ˌmɛɡəɡəˈmiːtə(ʊ)fʌɪt/, /ˌmɛɡəˈɡamᵻtəfʌɪt/
• (US) IPA^(key): /ˌmɛɡəɡəˈmidəˌfaɪt/