The spelling of the word "hetralin" can be broken down phonetically using the IPA transcription as [hɛtɹəlɪn]. The onset "h" represents the initial sound, followed by the open-mid front vowel "ɛ". The "t" and "r" sounds form a consonant cluster, followed by the schwa sound "ə". The final syllable begins with the "l" sound and ends with the short "i" vowel sound "ɪ". "Hetralin" is a word that may require unique context to decipher its meaning as it is not a commonly used word in English.
Hexamethylene tetramine resorcinol.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.