Here are some disease-resistances as listed by Territorial:
ASC - Alternaria Stem Canker
EB - end blight
F1 - Fusarium Wilt, Race 1
F2 - Fusarium Wilt, Race 2 (I usually see these just listed as "F")
LB - Late Blight, Types US8 US11
N - Nematodes
St - Stemphylium - gray leaf spot
TMV - Tobacco Mosaic Virus
ToMV - Tomato Mosaic Virus, Styrains 0, 1 and 12
V - Verticillium Wilt, Race 1
(Even with FireFox, I haven't been able to get back to Tatania's TomatoBase. That's where I would look for "definitive" definitions of tomato terms. The ":88" in the URL defeats me. I need to look up (again) what security settings block that port.)