Noun
microfibril (plural microfibrils)
A bundle of cellulose polymer chains held together by weak bonds.
The basic structure of euchromatin is an elongated, open, 10 nm microfibril, as noted by electron microscopy. Source: Internet
With type I collagen and possibly all fibrillar collagens, if not all collagens, each triple-helix associates into a right-handed super-super-coil referred to as the collagen microfibril. Source: Internet
Therefore, in each D-period repeat of the microfibril, there is a part containing five molecules in cross-section, called the “overlap”, and a part containing only four molecules, called the "gap". Source: Internet