HI, I'M Looking to buy these tires, infinity armadillos, the size they give me is 700c & 27x1-1/4, can some body help me break this down, so i could kinda figure out if they could fit my wheels, thanks alot

I was wondering if most people here consider that for a bike to be a "hybrid" does it have to have 700C wheels ? I am building up a new bike for myself which I consider a 26" wheel hybrid or a "Mountain Lite" bike It is going to have light alum hardtail frame (Performance Bikes Access XCL...