find an old Dorland's Medical Dictionary at a used book store (cheap), package it up and send it by USPS book rate to this QA person with a little note saying something like, I hope you find this helpful in your work. I wouldn't sign it and mail it from a post office in another town. You can't get much more definitive than Dorland's, can you? Jeesh, I'm getting evil in my old age. LOL.