terminology has a long history, so let's try to retrace it.
The tag's first revision, back in 2010, explicitly mentions questions like yours as problematic, and the wording never left the description afterwards. This first revision also makes it clear that "single questions which ask for a list of answers (with one term per answer) do not fit well into the engine and are likely to be closed". This is not a rule specific to the tag, but an explanation of how the general rules apply to the tag.
The tag's wiki excerpt was edited shortly after to
For questions that ask what a gaming-specific term means.
This wording brings the information found only in the full description to the more accessible excerpt, although implicitly.
The tag then went untouched while questions kept getting asked, eventually resulting in this meta: Do we want to support "Is there a term for x" questions?
In it, a decision was seemingly reached, with answers against and for such questions scoring respectively +18/-1 and +13/-5 after two weeks.
This rule was not, however, added to the Tour or any Help pages - maybe because it could still fit under "Too broad", maybe because we only have four custom off-topic reasons - later resulting in meta questions like this: Add prohibition of "name this mechanic/design"-style questions to the tour
(For the record, I think all rules should be in the Tour and Help pages now)
In order to make the rule more visible, I later edited the terminology wiki excerpt to explicitly mention the issues with such questions:
This tag is only for questions that ask what a gaming-specific term means - not for questions that ask to find terms that describe parts or characteristics of games; such questions are likely to be closed.
Not too long after, Robotnik edited the tag wiki into much better shape, providing better examples of allowed questions, ultimately also adding an example of questions that are not allowed in the excerpt.
So the tag wiki is not dictating that questions like yours are off-topic, it is explaining so.
As a side note, the meta where these questions were voted against no longer shows any consensus due to votes that were cast long after the question was asked. Whether this is from users disagreeing with having their own question closed and expressing that disagreement with their votes, or a genuine attempt to reverse the decision, I cannot say, but it might be time to revisit this rule. And, if the rule remains, add it to the Tour and Help pages.