sea monkey

noun

A brine shrimp, sold as a novelty aquarium pet.

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Meanings

nounsea monkey (plural sea monkeys)

plural sea monkeys

  1. A brine shrimp, sold as a novelty aquarium pet.

    Please send my Sea-Monkey kit(s) and my FREE supplies and guarantee. I must be 100% satisfied or you will refund my money.

    1973, “SEA-MONKEYS (advertisement)”, in Raggedy Ann and Andy Comics, page 13
    2 more examples

    'I think one of my sea monkeys is ill.' He holds the small plastic sea tank aloft and points at a black speck the size of a pinhead.

    2008, Anna Nicholas, Cat on a Hot Tiled Roof: Mayhem in Mayfair and Mallorca

    Greg is a sea monkey farmer. Every year he sells 4.5% of his herd (if that's what you'd call a group of sea monkeys) at the international sea monkey auction.

    2011, Linus Christian Rollman, Greg Logan Neps, Crocodiles and Coconuts, page 44

Origin

Genericized trademark from the brand name Sea-Monkeys.

Full word history & related roots →
Cite this entry
APA

sea monkey. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/sea%20monkey

MLA

“sea monkey.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sea%20monkey. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “sea monkey,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/sea%20monkey.

Source: sea monkey on Wiktionary, CC BY-SA 4.0.