Proving An Elementary Science Lesson Wrong With Two Questions

[The Ceej]

I believe Pluto wasn't large enough to constitute the planet title, right?

I believe Pluto is larger than Mercury. Isn't Mercury still a planet?

I do believe, if it were a word at the time, my dictionary would have said so.

Out of curiosity, what is the date on your dictionary?

The copyright on my dictionary is 1991. I refuse to get a dictionary they make these days due to the inclusion of 50,000 new "words" that aren't really words like def, McJob, and that load of new ones they added this year that I can't remember. I refuse to have my dictionary bogged down with groups of letters that aren't real words.

logic error

I suppose I can switch brands. Not all dictionaries are doing that. Just Merriam Webster.