Is This a Russian Dictionary?

This is like a 500 page grammar, right? This guy has worked very hard on this language for a long time. So that's got to be one nice hefty book. See, here's the dictionary does have some nice touches. Like the word jire has two meanings. One of them is fodder and the other one is fuel or kindling. Yeah. The etymology is from common Slavic, which I'm not even going to try to pronounce them means fat or oil. so that's great. But I just hate seeing dictionaries with word, with a single word English definition.