IPA: /ˈdrɔːtjuːb/
KK: /drɔːtjuːb/
A tube that can slide inside another tube, often used in devices like telescopes or microscopes to adjust the length or focus.
The drawtube of the telescope allows for easy adjustments to see distant objects clearly.
The word 'drawtube' is formed from 'draw' (from Old English 'dragan', meaning to pull or drag) and 'tube' (from Latin 'tubus', meaning a pipe or cylinder). The term 'drawtube' refers to a tube that is used to draw or pull something through it.
Think of 'drawing' something through a 'pipe' or 'cylinder' — that's what a drawtube does.
No commonly confused words.