Real Dictionary

prose
Prose is ordinary written language, in contrast to poetry.

prose in American English
of or in prose
the ordinary form of written or spoken language, without rhyme or meter; speech or writing, sometimes, specif., nonfictional writing, that is not poetry
to speak, write, or express (one's thoughts, etc.) in prose or in a prosaic way
adjective: of, in, or pertaining to prose
intransitive verb: to write or talk in a dull, matter-of-fact manner
noun: the ordinary form of spoken or written language, without metrical structure, as distinguished from poetry or verse
transitive verb: to turn into or express in prose

prose in British English
noun: spoken or written language as in ordinary usage, distinguished from poetry by its lack of a marked metrical structure
verb: to write or say (something) in prose