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physoclistous

American  
[fahy-suh-klis-tuhs] / ˌfaɪ səˈklɪs təs /

adjective

Ichthyology.

  1. having the air bladder closed off from the mouth.

physoclistous British  
/ ˌfaɪsəʊˈklɪstəs /

adjective

  1. (of fishes) having an air bladder that is not connected to the alimentary canal Compare physostomous

"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 physoclistous

1885–90; < New Latin Physoclist ( i ) genus name (< Greek phȳso- physo- + kleistoí, plural of kleistós shut, verbid of kleíein to shut) + -ous

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.