guppy

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guppy¹

  • /ˈɡʌpi/

Rhymes with -ʌpi

Where it comes from

From a name mistakenly assigned, Girardinus guppii, after biologist Robert J. L. Guppy, to previously assigned Poecilia reticulata.

noun guppies · obsolete taxonomic names

  1. A species of tiny freshwater fish, Poecilia reticulata, popular in home aquariums, that usually has a plain body and black or dark blue tail for the females and a more colorful tail for the males. The guppies can vary in size, but males are 4 cm (1.6”) and females are 7 cm (2.8”). Fred kept a tank of guppies by the windowsill.

    Similar: millionfish

  2. broadly Any tiny fish. Throw that one back; it’s just a guppy!
  3. A tube holding paintballs before they are loaded into the gun. I reached into my pack and grabbed a guppy to reload. Pouring in the contents, I kept my eyes ahead as I was supposed to do.
  4. A hold across the palm of the hand rather than the fingertips.
  5. Acanthocephalus guppii
  6. Acanthocephalus reticulatus
  7. Girardinus guppii
  8. Girardinus petersi
  9. Girardinus poeciloides
  10. Girardinus reticulatus
  11. Haridichthys reticulatus
  12. Heterandria guppyi
  13. Lebistes poecilioides
  14. Lebistes reticulatus
  15. Poecilia poeciloides
  16. Poecilioides reticulatus

Guppy²

proper noun

  1. A surname.

Translations

Every language

noun Poecilia reticulata

Portuguêsguppy, lebiste, barrigudinho
Françaisguppy
Русскийгу́ппи gúppi

noun any tiny fish

Русскиймалёк maljók

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Cite this
MLA

"guppy." Wiktionary, via Micwyn, micwyn.com/word/guppy. Accessed 6 Nov. 2026.

APA

guppy. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/guppy

Chicago

"guppy." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/guppy.

BibTeX
@misc{guppy_2026,
  title = {guppy},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/guppy},
  urldate = {2026-11-06}
}