microlumen

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noun

An extremely small lumen (cavity within a tube or tubular organ).

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Meanings

nounmicrolumen (plural microlumens)

plural microlumens

  1. anatomyAn extremely small lumen (cavity within a tube or tubular organ).
  2. One millionth (10⁻⁶) of a lumen (unit of luminous flux).

    Light-flux standards required are in the range of 10 microlumens and less.

    1955, Sol Schneider, “Interferometer for Analyzing Mixtures of Hydrogen Isotopes”, in Review of Scientific Instruments, volume 26, number 6, →DOI, page 623

Origin

From micro- + lumen.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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