What is another word for phragmacone?
Pronunciation: [fɹˈaɡmɐkˌə͡ʊn] (IPA) 
Phragmacone is a term used to describe the internal chambered structure of a cephalopod's shell. However, there are also other terms commonly used to describe this same structure. One synonym for phragmacone is the word septum, which refers to the internal dividing walls within the shell. Another term is the word siphuncle, which describes the tube-like structure that runs through the center of the septa. Additionally, the term conotheca may also be used to describe the chambered shell of a cephalopod. While these terms all refer to different aspects of the complex shell structure, they are all synonyms for phragmacone and can be used interchangeably depending on the context.
