Illustration of seahorse
- seahorse 1
plural seahorses
1
: any of a genus (Hippocampus of the family Syngnathidae) of small bony fishes that have the head angled downward toward the body which is carried vertically and are equipped with a prehensile tail
2
: a mythical creature half horse and half fish
3
: walrus
Examples of seahorse in a Sentence
Recent Examples on the Web
Like seahorses, females are larger and males brood eggs, Short says.
—
Meghan Bartels, Scientific American, 15 May 2026
According to the Journal of Fish Biology, the hairy ghost pipefish — loosely related to seahorses, pipefishes and sea dragons — may be found in Australia, Papua New Guinea, Fiji, New Caledonia and Tonga.
—Shyla Watson, PEOPLE, 14 May 2026
The similarity is so strong that even the team from the beloved children’s show gave their full backing to name the seahorse relative after Big Bird’s woolly pal.
—Andrew Paul, Popular Science, 13 May 2026
The other tanks, for Marcellus and the seahorses and the wolf eels, were on a stage.
—Emily Zemler, Los Angeles Times, 7 May 2026
Through simple text and brilliant animal illustrations reminiscent of Eric Carle’s finest, Caldecott honoree Christian Robinson presents a lovely and nuanced portrait of dads across the animal kingdom, from lions to seahorses to humans.
—Literary Hub, 1 May 2026
The campaign also features a series of inflatable-like animal sculptures created by set designer Andy Hillman and his team including an octopus, whale, lobster, seahorse, crab and flamingo.
—Chris Gardner, HollywoodReporter, 16 Apr. 2026
The winery’s door handles are seahorses, and the bathrooms, marked with mermaid and pirate signage, each feature a large mermaid mural inside, painted by Barrett.
—Jess Lander, San Francisco Chronicle, 8 Apr. 2026
Visitors can explore an underwater world that includes an ocean tunnel, sea turtle rescue center, an interactive touch pool, jellyfish, colorful tropical fish, seahorse displays and more.
—Alyson Rodriguez, Dallas Morning News, 25 Feb. 2026
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Meghan Bartels, Scientific American, 15 May 2026
According to the Journal of Fish Biology, the hairy ghost pipefish — loosely related to seahorses, pipefishes and sea dragons — may be found in Australia, Papua New Guinea, Fiji, New Caledonia and Tonga.
—Shyla Watson, PEOPLE, 14 May 2026
The similarity is so strong that even the team from the beloved children’s show gave their full backing to name the seahorse relative after Big Bird’s woolly pal.
—Andrew Paul, Popular Science, 13 May 2026
The other tanks, for Marcellus and the seahorses and the wolf eels, were on a stage.
—Emily Zemler, Los Angeles Times, 7 May 2026
Through simple text and brilliant animal illustrations reminiscent of Eric Carle’s finest, Caldecott honoree Christian Robinson presents a lovely and nuanced portrait of dads across the animal kingdom, from lions to seahorses to humans.
—Literary Hub, 1 May 2026
The campaign also features a series of inflatable-like animal sculptures created by set designer Andy Hillman and his team including an octopus, whale, lobster, seahorse, crab and flamingo.
—Chris Gardner, HollywoodReporter, 16 Apr. 2026
The winery’s door handles are seahorses, and the bathrooms, marked with mermaid and pirate signage, each feature a large mermaid mural inside, painted by Barrett.
—Jess Lander, San Francisco Chronicle, 8 Apr. 2026
Visitors can explore an underwater world that includes an ocean tunnel, sea turtle rescue center, an interactive touch pool, jellyfish, colorful tropical fish, seahorse displays and more.
—Alyson Rodriguez, Dallas Morning News, 25 Feb. 2026
Cite this Entry
“Seahorse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seahorse. Accessed 22 May. 2026.
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