(This is changed from the 6th edition)

When the author is a group, such as Merriam-Webster, the name of the group is placed in the author position.

If you used a print version of the work, enter the publication date. Online dictionaries or encyclopedias are usually continuously updated; some also have archived versions. If you used an archived version with a DOI or URL, enter the date of that version. If you are citing an online work that does not have archived versions, enter (n.d.) as the date and enter the date retrieved at the end of the reference.

The term or phrase being defined is placed after the date in sentence case. As with an edited book, begin the source element with “In” and the name of the publication, in italics. If more than one entry for the group is included, the date with suffix is shown with a dash before the suffix.

Encyclopædia Britannica. (2016, November 7). Distance learning. In Encyclopædia Britannica. https://www.britannica.com/topic/distance-learning 

Merriam-Webster. (n.d.-a). Interdisciplinary. In Merrian-Webster.com dictionary. Retrieved March 25, 2020, from https://www.merriam-webster.com/dictionary/interdisciplinary 

Merriam-Webster. (n.d.-b). Transdisciplinary. In Merrian-Webster.com dictionary. Retrieved March 25, 2020, from https://www.merriam-webster.com/dictionary/transdisciplinary