To distinguish between different dictionary entries for the same term, follow the principle in our previous post on distinguishing between works with the same title: provide additional details in your parenthetical citation, usually the first unique piece of information in your works-cited-list entries.
For example, in the following works-cited-list entries for emoticon, the information in the “Title of source” slot—the headword—is identical:
“Emoticon, N.” Merriam-Webster’s Collegiate Dictionary, 11th ed., Merriam-Webster, 2003, p. 408.
“Emoticon, N.” Oxford English Dictionary, Oxford UP, 2018, www.oed.com/view/Entry/249618?redirectedFrom=emoticon#eid.
To distinguish between these entries in your parenthetical citation, . . .
Published 30 May 2018