datum line

noun

A line which serves as a reference or base for the measurement of other quantities.

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Meanings

noundatum line (plural datum lines)

plural datum lines

  1. engineeringA line which serves as a reference or base for the measurement of other quantities.
Cite this entry
APA

datum line. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/datum%20line

MLA

“datum line.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/datum%20line. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “datum line,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/datum%20line.

Source: datum line on Wiktionary, CC BY-SA 4.0.