jawless
Americanadjective
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.
While jawed fishes remained isolated in South China, jawless vertebrates continued to thrive elsewhere and dominated the open oceans for another 40 million years.
From Science Daily • Jan. 11, 2026
The divots were created at a time when animals in the seas were taking on a broad array of new forms, building complex ecosystems from plankton to jawless fish to spaceship-like filter feeders.
From Slate • Oct. 21, 2024
"Previous feeding mode hypotheses of early jawless vertebrates have mainly been based on poorly constrained inferences. But using computational palaeobiological methods, we were able to actually test and reject one of these feeding mode hypotheses."
From Science Daily • Jan. 16, 2024
About 500 million years ago, vertebrates were jawless marine creatures with tails but no paired fins, and numerous, paired gill arches.
From Science Magazine • Nov. 1, 2023
His upper lip smiled, but Starnes's jawless chin couldn't follow suit.
From "An Abundance of Katherines" by John Green
![]()
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.