After the tertiary level comes a sequence of terms used to describe things in order. First is quaternary, followed by quinary, then senary, septenary, octonary, nonary, and denary. Beyond these, the pattern continues with duodenary for twelve. This sequence provides a way to categorize and describe things in a systematic manner, especially when discussing levels or divisions.
In various fields, these terms are used to classify different aspects. For instance, in geology, the Quaternary period refers to the most recent period of Earth’s history. In chemistry, quinary compounds are those that contain five elements. This progression of terms helps experts and enthusiasts alike to specify and articulate concepts more precisely.
So, to answer the question “What is the one after tertiary?” the sequence continues with quaternary. Each term represents a specific point in a larger order, providing a structured way to refer to different levels or groups.
(Response: The one after tertiary is quaternary.)