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Medical Definition of Hispid flagella
1. Eukaryotic flagella with two rows of stiff protrusions (mastigonemes) at right angles to the long axis of the shaft. In hispid flagella, the normal relationship between the direction of flagellar wave propagation and the direction of movement is reversed, a proximal to distal wave pulls the organism forward. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)