The word "spermatizes" may seem unusual to some, but it is actually the correct spelling when referring to the act of causing sperm production. The phonetic transcription of this word is /ˈspɜːrmətaɪzɪz/, with stress on the second syllable. The letter "z" instead of "s" in the suffix "-izes" indicates that it is a verb form in American English spelling. In British English, the spelling would be "spermatises." Regardless of the spelling, the word refers to a process essential for reproduction in many species, including humans.