lungfish

American  

[luhng-fish] / ˈlʌŋˌfɪʃ /

noun

plural

lungfish,

plural

lungfishes

1. any of various slender, air-breathing fishes of the order (or subclass) Dipnoi, of rivers and lakes in Africa, South America, and Australia, having a lunglike air bladder as well as gills and growing to a length of 3 to 6 feet (0.9 to 1.8 meters).

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lungfish British  

/ ˈlʌŋˌfɪʃ /

noun

1. any freshwater bony fish of the subclass Dipnoi, having an air-breathing lung, fleshy paired fins, and an elongated body. The only living species are those of the genera Lepidosiren of South America, Protopterus of Africa, and Neoceratodus of Australia

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lungfish Scientific  

/ lŭng′fĭsh′ /

1. Any of several tropical freshwater fish of the order or subclass Dipnoi that, in addition to having gills, have lunglike organs for breathing air. Lungfish have a long, narrow body, and certain species can survive periods of drought inside a mucus-lined cocoon in the mud. The lungfish and the coelacanths are the only living lobe-finned fishes.

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Etymology

Origin of lungfish

First recorded in 1880–85; lung + fish

Example Sentences

"We were able to compare its most preserved inner ear area with other Gogo lungfish. This is an extra data point in the amazing collection of lungfish and early vertebrate species," she says.

From Science Daily • Mar. 12, 2026

And in the cargo hold of a steamship, a young lungfish arrived from Australia to a new home at an aquarium in San Francisco.

From New York Times • Sep. 18, 2023

Seeking to learn about the evolutionary origins of acoustic communication in vertebrates, the scientists recorded 53 species from four major clades — turtles, tuatara, caecilians and lungfish — to analyze what they heard.

From Salon • Nov. 9, 2022

He also wants to compare the sounds of land vertebrate and lungfish with those of other fish to see whether the acoustic evolutionary tree extends even further back in time.

From Science Magazine • Oct. 25, 2022

Suffice it to say that the scientist now believes that out of the lungfish of the Devonian came the amphibians of the Carboniferous period.

From The Meaning of Evolution by Schmucker, Samuel Christian