Trying to read some of these Death Certificates I just couldn’t make out the cause of death. I found this medical dictionary very useful http://medical-dictionary.thefreedictionary.com/. One of the causes of deaths I was able to make out the first letter & the end of the word. I was able to limit my search to “Ends With” then look for a word that started with the letters, and was able to find the word I wanted. These are some of options to limit your search, "Word/Article", "Starts with", "Ends with", and "Text".
The Free Dictionary website http://www.thefreedictionary.com/ has more than just medical definitions: Dictionary/thesaurus, Computing dictionary, Medical dictionary, Legal dictionary, Financial dictionary, Acronyms, Idioms, Columbia encyclopedia, and Wikipedia encyclopedia.