polar fibers

po·lar fi·bers

those fibers of the mitotic spindle extending from the two spindle poles toward the equator. Compare: astral fibers, kinetochore fibers.
References in periodicals archive ?
This incompatibility between polar fibers and non-polar thermoplastic matrices leads to poor adhesion and dispersion, resulting in composites with low mechanical properties [3].
This strategy would allow the production of more homogenously dispersed composites of a hydrophobic polymer such as PP and the polar fibers.
For these cases of polar fibers and hydrophobic matrices, poor mechanical properties can be linked to weak interfacial bonding.