Webster’s Revised Unabridged Dictionary · 1913
Podura
Po·du′ra (pō·dū′rȧ), n.; pl. L. Poduræ (#), E. Poduras (#). [NL.; Gr. πούς, ποδός, foot + οὐρά tail.] Any small leaping thysanurous insect of the genus Podura and related genera; a springtail.
Podura scale (Zoöl.), one of the minute scales with which the body of a podura is covered. They are used as test objects for the microscope.