ceratodus

American

[suh-rat-uh-duhs, ser-uh-toh-duhs] / səˈræt ə dəs, ˌsɛr əˈtoʊ dəs /

noun

plural

ceratoduses

a lungfish of either of two genera, Neoceratodus and the extinct Ceratodus, having hornlike ridges on the teeth.

ceratodus British

/ sɪˈrætədəs, ˌsɛrəˈtəʊdəs /

noun

any of various extinct lungfish constituting the genus Ceratodus, common in Cretaceous and Triassic times Compare barramunda

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ceratodus

First recorded in 1870–75; from New Latin, equivalent to cerat- “horn” + -odus, from Greek odoús “tooth”; cerat-, tooth

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Their organization might, in some respect, be like the ceratodus and proloptems; but this is not certain.

From Project Gutenberg

Young ceratodus, shortly after issuing from the egg, magnified ten times. k gill-cover, l liver.

From Project Gutenberg

Young ceratodus six weeks after issuing from the egg. s spiral fold of gut, b rudimentary belly-fin.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023