Abbreviations?

I feel silly asking but is there any place to look up abbreviations? For example NED? Keep running across and cannot figure out.

I am recently diagnosed 9/19, de novo, estrogen positive, HER negative with mets (I know one, yay!) to lymph nodes, iliac, and a couple of lumbar.

Thank you all who contribute to this forum, I have learned so much from all of you.