The term "Aztec idiocy" refers to the idea that the Aztecs, an ancient civilization from present-day Mexico, were uncivilized and ignorant. The phonetic transcription of this term is /ˈæz.tɛk ˈɪ.di.ə.si/, with the stress on the first syllable of each word. The "z" in Aztec is pronounced as a voiceless alveolar fricative, like the "s" in "set". The "c" is pronounced as a voiceless velar stop, like the "k" in "kite". The "i" in idiocy is pronounced as a long "i" sound, like the "ee" in "meet".
Microcephalic i., marked by receding forehead and chin, the profile having a triangular form.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.