Skip to Content


Pronunciation: ak′sō-nēm


  1. The central thread running in the axis of the chromosome.
  2. The distinctive array of microtubules in the core of eukaryotic cilia and flagella comprising a central pair surrounded by a sheaf of nine doublet microtubules.

Synonym(s): axial filament

[axo- + G. nēma, a thread]

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.