Pronunciation: [kˈatəptɹˌɒn] (IPA) 
The word "Catoptron" is spelled with a hard "c" and a silent "t," followed by the letters "a," "o," "p," "t," "r," "o," and "n." In phonetic transcription, it is pronounced /kætˈɒptrən/. This word comes from Greek and means "a mirror or reflecting surface." Its unique spelling may be difficult for some to remember, but studying word etymology can help to understand and retain the spelling of uncommon words.
An optical glass or instrument.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "Catoptron" is derived from the Greek term "katoptron" (κάτοπτρον), which means "mirror" or "reflecting surface". It is formed by combining the prefix "kata" (κατά), meaning "down" or "towards", and the noun "optro" (ὄπτρον), which means "sight" or "vision". Therefore, "Catoptron" can be understood as something that reflects or imitates sight.
