Definitions for "MULTIPLE SUBMISSION"
The submission of a manuscript for consideration to several publishers simultaneously. Many publishers are reluctant to consider accepting a manuscript, which they know has been submitted to others before they have had the opportunity to read it, evaluate it, and decide whether or not to pursue it further. Multiple submissions are also known as simultaneous submissions. See also FACSIMILE REJECTION SLIP SIMULTANEOUS SUBMISSION
Pitching the same story idea to several publications simultaneously.
The practice of sending out one article to more than one publication at the same time. This is also called a simultaneous submission.