Just copy and paste your text into our spell checker and grammar checker and we will help you fix the English spelling and English grammar! We offer spell check in 24 languages. Plus we offer a free thesaurus. If you don't want to use our free online spell check site, there are many spell check programs out there. Some are available for download. Some spell check programs can be purchased for a nominal fee, sometimes on an annual basis.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  marginally(Adverb) in a marginal manner, or to a marginal extent; barely sufficiently; slightly. 2  marginally(Adverb) in the margin of a book.
In microeconomics, marginal revenue (R') is the additional revenue that will be generated by increasing product sales by one unit. It can also be described as the unit revenue the last item sold has generated for the firm.