plural blennies
: any of numerous usually small and elongated marine fishes (especially families Blenniidae and Clinidae) including scaled and scaleless forms
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One of a group of numerous and diverse species, blennies are mostly small, marine fish found from tropical to cold seas. Blennies are slim, ranging from moderately elongated, to very long and eel-like. Their habitats include rocky pools, sandy beaches, reefs, and beds of kelp. Many live in shallow water, but some live in depths of about 1,500 ft (450 m). Some are mainly herbivores; others are partial or complete carnivores. They are generally unobtrusive and of little economic importance.
Examples of blenny in a Sentence
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Some species of blenny live exclusively in the water, while others hop in and out of the water, which not only alters their environment but can alter their body's temperature and oxygen levels.
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Fox News, 17 June 2020
Not deterred by his humorously painful experience with the blenny in Guam, Losey travelled to Eniwetok Atoll to observe Meiacanthus atrodorsalis and two similar-looking blenny species and perform preliminary toxicity tests.
—Christie Wilcox, Discover Magazine, 30 Mar. 2017
Morgans and Ord traveled around the periphery of Guam and visited five different blenny populations.
—Elizabeth Preston, Discover Magazine, 5 Dec. 2013
Having a specialized diet allowed certain species of blenny to adapt to environmental changes or continue to evolve to further the species, the researchers noted.
—Fox News, 17 June 2020
Those puny fishes—gobies, blennies, cardinalfishes, and others—are mostly less than two inches long.
—Jennifer Hayes, National Geographic, 23 May 2019
The fish that are likely to thrive in the oceans of the future—small, adaptable species such as gobies and blennies—are, simply, not fish people like to eat.
—Lizzie Wade, WIRED, 1 Sep. 2015
Stone crabs, arrow crabs and various blennies live hidden amidst the anemones.
—Ben Raines | Braines@al.com, AL.com, 5 July 2017
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Fox News, 17 June 2020
Not deterred by his humorously painful experience with the blenny in Guam, Losey travelled to Eniwetok Atoll to observe Meiacanthus atrodorsalis and two similar-looking blenny species and perform preliminary toxicity tests.
—Christie Wilcox, Discover Magazine, 30 Mar. 2017
Morgans and Ord traveled around the periphery of Guam and visited five different blenny populations.
—Elizabeth Preston, Discover Magazine, 5 Dec. 2013
Having a specialized diet allowed certain species of blenny to adapt to environmental changes or continue to evolve to further the species, the researchers noted.
—Fox News, 17 June 2020
Those puny fishes—gobies, blennies, cardinalfishes, and others—are mostly less than two inches long.
—Jennifer Hayes, National Geographic, 23 May 2019
The fish that are likely to thrive in the oceans of the future—small, adaptable species such as gobies and blennies—are, simply, not fish people like to eat.
—Lizzie Wade, WIRED, 1 Sep. 2015
Stone crabs, arrow crabs and various blennies live hidden amidst the anemones.
—Ben Raines | Braines@al.com, AL.com, 5 July 2017
Cite this Entry
“Blenny.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blenny. Accessed 7 Jul. 2025.
Copy CitationKids Definition
blenny
noun
blen·ny
ˈblen-ē 
plural blennies
: any of numerous usually small and relatively long and often scaleless fishes living about rocky seashores
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