luminol

L1U1M3I1N1O1L1
UK/ˈljuːmɪnɒl/US/ˈluːmɪnɒl/

noun

The compound 5-amino-2,3-dihydro-1,4-phthalazinedione, which exhibits blue chemiluminescence when mixed with an appropriate oxidizing agent.

RareScrabble 9

Meanings

nounluminol (countable and uncountable, plural luminols)

plural luminols

  1. countableuncountablechemistryThe compound 5-amino-2,3-dihydro-1,4-phthalazinedione, which exhibits blue chemiluminescence when mixed with an appropriate oxidizing agent.

    The board was fully supportive, Mr. McDevitt said, even when Mr. Wheeler needed to buy a gallon of cow’s blood and a supply of luminol, a blood-detection chemical.

    2006 September 23, Jill P. Capuzzo, “Teaching Inspector Clouseau to Be Sherlock Holmes”, in The New York Times
verbluminol (third-person singular simple present luminols, present participle (US) luminoling or (UK) luminolling, simple past and past participle (US) luminoled or (UK) luminolled)

present singular third person luminols · US participle present luminoling · UK participle present luminolling · US participle past luminoled · US past luminoled · UK participle past luminolled · UK past luminolled

  1. transitivecriminologyTo test or subject a sample or an individual to a luminol agent in order to locate traces of blood.

    Luminoling of material can establish unequivocally that no blood is present.

    1997, United States. Court of Military Appeals, West Publishing Company (contributors), West's Military Justice Reporter, volume 46, page 860
    5 more examples

    For two nights Patterson, Frosch, and Nabors Luminoled the house, checking and re-checking the evidence they found.

    1997, Patricia Springer, Flesh and Blood, page 105

    Perhaps the auto warrant had gone through and the vehicle was being raked and combed and vacuumed and luminoled in some forensic garage.

    2000, Jonathan Kellerman, Dr. Death, An Alex Delaware Novel, page 314

    The crime scene unit was all over the apartment, photographing, luminoling, vacuuming, plucking with tweezers.

    2004, John Lutz, Darker Than Night, page 13

    Lester brings the hard-shelled golf bag in and Grissom luminols the interior of the case. The whole case fluouresces briefly then immediately fades, indicating the insides were bleached.

    2004, Mike Flaherty, Corinne Marrinan, Anthony E. Zuiker, CSI: Crime Scene Investigation Companion, page 201

    "You may not find it," McClure said. He answered Walt's puzzled expression by explaining," We luminoled her." He picked up a tube light from a workstation. "Get the lights," he said.

    2007, Ridley Pearson, Killer Weekend, page 201

Origin

First use appears in 1934 in a paper by E. Huntress, L. Stanley, and A. Parker. The verbal form first appears c. 1997, although the exact date of its first appearance is uncertain.

Full word history & related roots →

Translations

Chinese Mandarin 魯米諾 /鲁米诺
  • 魯米諾 /鲁米诺 (lǔmǐnuò)chemical that exhibits blue chemiluminescence
Finnish luminoli
  • luminolichemical that exhibits blue chemiluminescence
French luminol
  • luminolchemical that exhibits blue chemiluminescence
German Luminol
  • Luminolchemical that exhibits blue chemiluminescence
Italian luminol
  • luminolchemical that exhibits blue chemiluminescence
Japanese ルミノール
  • ルミノール (ruminōru)chemical that exhibits blue chemiluminescence
Korean 루미놀
  • 루미놀 (ruminol)chemical that exhibits blue chemiluminescence
Polish luminol
  • luminolchemical that exhibits blue chemiluminescence
Portuguese luminol
  • luminolchemical that exhibits blue chemiluminescence
Russian люминол
  • люминол (ljuminol)chemical that exhibits blue chemiluminescence
Spanish luminol
  • luminolchemical that exhibits blue chemiluminescence
Turkish luminol
  • luminolchemical that exhibits blue chemiluminescence

Rhymes & wordplay

Anagrams

Cite this entry
APA

luminol. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/luminol

MLA

“luminol.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/luminol. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “luminol,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/luminol.

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