drawtube

[ draw-toob, -tyoob ]

noun

1. a tube sliding within another tube, as the tube carrying the eyepiece in a microscope.

drawtube

/ ˈdrɔːˌtjuːb /

noun

1. a tube, such as one of the component tubes of a telescope, fitting coaxially within another tube through which it can slide

Word History and Origins

Origin of drawtube¹

First recorded in 1890–95; draw + tube