The correct spelling of the word inclsor tooth is actually "incisor tooth". The word "incisor" comes from the Latin word "incisus", which means "to cut into". The IPA phonetic transcription for this word is /ɪnˈsaɪzər tuθ/. The first syllable is pronounced with the short 'I' sound, the 's' is pronounced like a 'z' and the 'o' is silent. The second syllable is pronounced like "saw-zur". Incisor teeth are located at the front of the mouth and are used for cutting and biting food.
Dens incisivus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.