boojum

B3O1O1J8U1M3

noun

A geometric pattern sometimes observed on the surface of superfluid helium-3.

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Meanings

nounboojum (plural boojums)

plural boojums

  1. natural sciencesA geometric pattern sometimes observed on the surface of superfluid helium-3.
  2. countableA species of tree (Fouquieria columnaris) native to Baja California, Mexico.
  3. Something mysterious and dangerous.

    Her long-term projects were all dealt with. The antimemetics groups would keep plugging away without her regular input. Wheeler would find a new boojum to hunt, and be hunted by. Bernie was as much at rest as he would ever be. Euler's fight… well. That was in the future.

    2024 October 8, Harry Blank, “The Foreseeable Future”, in Deadlined, →ISBN, page 810

Origin

Nonsense word from The Hunting of the Snark by Lewis Carroll.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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