Prose
The word "prose" first appears in English in the 14th century. It is derived from the Old French "prose", which in turn originates in the Latin expression "prosa oratio" (literally, straightforward or direct speech).
Flash prose
Flash prose, also known as "flash literature", is brief creative writing, generally on the order of between 500 and 1500 words. It's also an umbrella term that encompasses various short format works such as prose poetry, short essays and other works of creative fiction and nonfiction. The term "flash" implies fast, impromptu, and short format. The term "flash prose" is generally used in the context of writing competitions or other public exhibitions of creativity or skill with language such as weblogs or non-journalistic writing in, for example, a daily, a journal or another type of periodical.