common name; popular name; trivial name
Refers to a widely used, non-technical name for something, as opposed to its official or scientific name. Often used in contexts like plant names, chemical compounds, or everyday objects.
The common name for this plant is 'hotokenoza', but it has a separate official scientific name.
化学では、慣用名が今でもよく使われています。
In chemistry, trivial names are still often used.