listeme

plural listemes

1. human sciencesAn item that is memorized as part of a list, as opposed to being generated by a rule.

   Idioms such as "red herring" are listemes, as are irregular forms such as "geese".

   1 more example

   A memorized chunk is sometimes called a listeme, that is, an item that has to be memorized as part of a list; one can argue that this book ought to have been called Listemes and Rules.

   2000, Steven Pinker, Words and Rules, →ISBN, page 24