Searching further, none of the uses of "coerce" or "coercion" in the docs seem to be a good match for the definition in this glossary entry. For example, from ipaddress.rst:

> By default, attempting to create a network object with host bits set will
result in :exc:`ValueError` being raised. To request that the
additional bits instead be coerced to zero, the flag ``strict=False`` can
be passed to the constructor

and from configparser.rst:

> A convenience method which coerces the *option* in the specified *section* to an integer.

etc. I think we should just get rid of the glossary entry.