Cite a web definition by using important information about the source. American Psychological Association (APA) style recommends using the defined word, year of publication, name of the source and the URL. For example, you would cite the definition of "graffiti" as "Graffiti." (2008). In Public Dictionary. Retrieved from www.publicxdictionary.com
Place the year of publication in parentheses with a period placed both before and after it. Italicize the name of the source. Also, include the words "in" and "retrieved from" to accurately identify a source and how it can be retrieved again.
Format an in-text citation for a web definition by using an abbreviated title of the source. Place the shortened title and the year of publication within parentheses, with a comma separating the two.