Celerodermic. Couldn't find it on the merriam-webster website but "dermic" I would think pertains to skin.
And, once you've been around the site for a while you'll see people say if you're going to write and send your work out into the world (or here on AW for critique) that you have to be "thick-skinned". I'm guessing but I believe that's what it means.
Sorry, I don't know much about fantasy, so I'm not sure how much I could help. But you should read the "How to Write a Query Letter" thread. Write up a couple drafts of a query letter no longer than 1 page (not including the space you need for the agent/publisher's address at the top and your contact information at the bottom), and then post it in the SYW forum.
You shouldn't worry about embarrassing yourself. The people in that forum give some great advice and, at some point in their careers, they had to learn how to write a query letter, too.
EDIT to add: And, you should go to that forum and read some query letters also and see how their query letter improves as people give feedback. I know when I posted a query letter last year, it was horrible but it began to improve vastly with help.
