Definition of microfibril in English:

microfibril

noun

Biology
  • A small fibril in the cytoplasm or wall of a cell, visible only under an electron microscope, and typically aggregated into coarser fibrils or structures.

    • ‘In plant primary cell walls, cellulose microfibrils are coated with and cross-linked together with hemicellulose and the spaces in these networks are filled with pectins, which also form a network.’
    • ‘It was reported for pea that GA changes the orientation of microtubules and cellulose microfibrils, making the cells swell more in length.’
    • ‘Fibres distal to the vascular elements as well as the parenchyma cells in the ground tissue had weakly birefringent cell walls, which may be attributed to a transverse orientation of cellulose microfibrils in the primary cell wall.’
    • ‘According to current models of primary cell walls, cellulose microfibrils, which are the major tensile elements of the wall, interact with matrix components such as hemicelluloses, forming a complex network.’
    • ‘Cellulose microfibrils within the guard cell wall are considered radial if they are oriented in the same way as the dotted lines (converging at the centre of the pore).’

Pronunciation

microfibril

/ˌmīkrōˈfībrəl/