Definition, Meaning & Synonyms

drawtube

noun

/ˈdrɔːˌtjuːb/

Definition

A tube used in a surveying instrument to direct sight for measurement purposes.

Examples

The drawtube of the telescope allows for precise focusing on distant stars.
In the surveying device, the drawtube ensures that the angle is measured correctly.

Meaning

A drawtube is often found in telescopes and surveying equipment; it helps in aligning the viewfinder and the sight in order to take accurate readings or observations.