boojum
English
![](../I/Cirio_columnaris%252C_boojum_tree.jpg.webp)
A boojum tree
Etymology
Nonsense word from The Hunting of the Snark by Lewis Carroll.
Noun
boojum (plural boojums)
- (physics) A geometric pattern sometimes observed on the surface of superfluid helium-3.
- (countable) A species of tree (Fouquieria columnaris) native to Baja California, Mexico.
Cochimi
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