I need to quote and cite from an online English dictionary. There is so many, I'm looking for the most credible, or does it really matter?
It depends on if you want British English or American English. Oxford is great for British English, but Merriam-Webster would be the best for American English.http://dictionary.cambridge.org/about.asp
I didn't know Cambridge Press is that old (1584-present) http://www.cambridge.org/emea/.
Off topic but interesting that many of the oldest universities are from Middle East (i.e. before 1100s):