The grammatical form denoting more than one person, place, thing, or idea.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Caged birds were used as living carbon monoxide detectors starting in the late nineteenth century — thanks to their highly efficient respiratory systems, the birds died from gas leaks long before human miners did.
From Los Angeles Times ● Mar. 7, 2025
This process can impact the circulation, nervous and respiratory systems and increase risk of illness of death from dehydration, heat exhaustion and heatstroke.
From BBC ● Feb. 1, 2024
In the third trimester during pregnancy, babies' respiratory systems mature so babies can breathe outside the womb.
From Science Daily ● Nov. 16, 2023
“For his age, 86, he doesn’t have pathologies” regarding his heart or respiratory systems, Alfieri said in response to a reporter’s question.
From Washington Times ● Jun. 10, 2023
“As you know,” he says, “those giant grasshoppers could never actually exist. At that size their respiratory systems would collapse.”
From "Cat's Eye" by Margaret Atwood
