The word "ANTIHEV" is a medical term used to describe substances or treatments that are used to prevent or treat hepatitis. The correct spelling of the word is "ænti'hɛv," with the stress on the second syllable. It is composed of the prefix "anti-" meaning "against" and "hep," which refers to the hepatitis virus. The IPA phonetic transcription of this word helps explain its pronunciation to ensure accuracy in communication among medical professionals.