The word "CESELECTIN" is spelled as /sɪsɛlɛktɪn/. The first syllable "sis" is pronounced as "sis" (short i sound) followed by "e" (short e sound). The second syllable "sel" is pronounced as "sel" (short e sound) followed by "e" (short e sound). The third syllable "ec" is pronounced as "ec" (short e sound) followed by "tin" (short i sound). This unique spelling can be challenging to remember, but with practice in phonetic transcription, one can easily master it.