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crocodilian

American  
[krok-uh-dil-ee-uhn] / ˌkrɒk əˈdɪl i ən /

noun

  1. any reptile of the order Crocodylia, comprising the true crocodiles and the alligators, caimans, and gavials.


adjective

  1. of, like, or pertaining to a crocodile.

  2. hypocritical; insincere.

crocodilian British  
/ ˌkrɒkəˈdɪlɪən /

noun

  1. any large predatory reptile of the order Crocodilia, which includes the crocodiles, alligators, and caymans. They live in or near water and have a long broad snout, powerful jaws, a four-chambered heart, and socketed teeth

"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

adjective

  1. of, relating to, or belonging to the Crocodilia

  2. of, relating to, or resembling a crocodile

"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
crocodilian Scientific  
/ krŏk′ə-dĭlē-ən /
  1. Any of various semiaquatic reptiles of the order Crocodilia, including the alligators, crocodiles, caimans, and gavials. Crocodilians are squat, massive, and lizardlike, with long, powerful jaws, long, heavy tails, short legs, and thick, plated skin. Like dinosaurs, crocodilians are archosaurs, and their closest modern relatives are the birds.


Etymology

Origin of crocodilian

crocodile + -ian; crocodilian defs. 1, 2 were first recorded in 1835–40 and crocodilian def. 3 in 1625–35

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.

This new analysis of the marks revealed that they most closely match an extinct caiman species called Purussaurus neivensis, a crocodilian that would have been up to five metres long.

From BBC • Jul. 22, 2025

They found that the alligator, a crocodilian, was unable to really grasp advanced visual perspective taking.

From Salon • Sep. 13, 2024

By cutting the bones and examining their features under a high-powered microscope, they could assess the age at death, the amount of annual growth, and the bone tissue characteristics of these extinct crocodilian forebears.

From Science Daily • Sep. 20, 2023

Many community forests are adjacent to national parks, and their revival has allowed endangered plant and animal species, including the tiger, the one-horned rhinoceros and the gharial, a crocodilian reptile, to thrive.

From New York Times • Nov. 11, 2022

Perhaps it shows a modification towards the crocodilian direction.

From Dragons of the Air An Account of Extinct Flying Reptiles by Seeley, H. G.