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APA (7th ed.) referencing guide (Online): Dictionary

Mae'r dudalen hon hefyd ar gael yn Gymraeg


Below you will find guidance and examples of how to reference both a print dictionary/encyclopaedia and an online dictionary/encyclopaedia in the body of your work and in the reference list at the end.

In text citations


American Psychological Association (2015) define...
...(American Psychological Association, 2015).


Merriam-Webster (n.d.) describe...
...(Merriam-Webster, n.d.).

Reference List

Print dictionary

Group Author. (Year). Word defined. In Title (edition., page number). Publisher.


American Psychological Association. (2015). Mood induction. In APA dictionary of psychology (2nd ed., p. 667). 


Online dictionary

Group Author. (Year). Word defined. In Title. Publisher. Retrieved Month Day, Year, from URL 


Merriam-Webster. (n.d.). Semantics. In dictionary. Retrieved January 4, 2020, from 

NB: Because entries in the Merriam-Webster's Dictionary are updated over time and not archived, include a retrieval date in the reference.

When the author and publisher are the same (as in the examples), omit the name of the publisher to avoid repetition.