I'm new to biology field, so I'm learning all kinds of biochemistry knowledge for a bioinformatics project. I've found a few definitions of secondary structure online. For example, I found this brief definition here:
A structure of a biological molecule characterized by the local folding within the biopolymer as a result of hydrogen bonding (within the biopolymer).
What does "local folding" mean here? More specifically, what does "local" in this context refer to? Thanks in advanced.