troland

T1R1O1L1A1N1D2

noun

A unit (symbol Td) of conventional retinal illuminance, intended as a means of correcting photometric measurements of luminance values impinging on the human eye by scaling them by the effective pupil size.

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Meanings

nountroland (plural trolands)

plural trolands

  1. A unit (symbol Td) of conventional retinal illuminance, intended as a means of correcting photometric measurements of luminance values impinging on the human eye by scaling them by the effective pupil size.

Origin

Named after Leonard T. Troland.

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Cite this entry
APA

troland. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/troland

MLA

“troland.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/troland. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “troland,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/troland.

Source: troland on Wiktionary, CC BY-SA 4.0.