Download the Chemistry Dictionary(V3.0) here   1/13/12: Welcome J. Chem. Educ. readers! After you download the dictionary, feel free to browse to the front page and have a look around. You may also be interested in our Reagent Table Calculator Widgets. 1/19/11: Reader Catie has forwarded a biology/medical dictionary that is also free and fully compatible with the chemistry dictionary or other custom dictionaries.  Read about it and download it here. — Original December 17, 2008, post follows: As anyone who’s written a paper for chemistry class or journal publication knows, spelling “errors” quickly become so numerous that you just ignore them. They’re not really errors, of course, just technical words that Microsoft’s standard dictionary doesn’t include. This is problematic for at least two reasons. One, I tend to gloss over the many, many squiggly red lines and therefore not notice actual spelling errors that have been made. Two, the standard spell checker cannot differentiate between correctly-spelled technical words and misspelled technical words. Thus, all technical words come back as misspelled whether or not they actually are misspelled. Around this time last year (end of 2007), I was looking for a solution to this problem. I wanted to download a free “custom dictionary” to upload to my word processor to recognize all the words that were correctly spelled, but not recognized by the standard dictionary. Surprisingly, I couldn’t find...