Definition of kidney
1a : one of a pair of vertebrate organs situated in the body cavity near the spinal column that excrete waste products of metabolism, in humans are bean-shaped organs about 41⁄2 inches (111⁄2 centimeters) long lying behind the peritoneum in a mass of fatty tissue, and consist chiefly of nephrons by which urine is secreted, collected, and discharged into a main cavity whence it is conveyed by the ureter to the bladderb : any of various excretory organs of invertebrate animals
2 : the kidney of an animal eaten as food
3 : sort or kind especially with regard to temperament a nice helpful guy, of a different kidney entirely from the … Secret Police — Paula Lecler
Examples of kidney in a Sentence
a patient with a damaged kidney
her new boyfriend is of a different kidney than what she usually dates
Recent Examples of kidney from the Web
According to METRO UK, the man was placed on life support and eventually died after his kidneys failed.
The disease requires a lifetime of attention to diet and exercise and access to proper medical treatment, without which diabetics are at risk of blindness, limb amputations, heart or kidney failure and stroke.
The E. coli bacteria’s effects can run from bloody diarrhea and dehydration to Hemolytic Uremic Syndrome (HUS), a form of kidney failure that can lead to death.
Your bones will join your heart, liver, kidneys and blood, to thank you for drinking no more than 1-2 drinks per day.
While an earlier study had shown a similar immunotherapy drug to be effective for a significant proportion of patients with advanced melanoma or lung or kidney cancer, checkpoint inhibitors weren't making headway with colon cancer.
A litany of critical medical procedures followed, including hip, femur and knee replacements and the removal of a kidney.
The young girl also has chronic kidney disease and hyperinsulinemia.
Kerry Owens, a doctor in Oklahoma City who specializes in kidney disorders, was stunned by the call to her mobile phone in September 2015.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'kidney'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of kidney
First Known Use: 14th century
KIDNEY Defined for English Language Learners
Definition of kidney for English Language Learners
: either of two organs in your body that remove waste products from your blood and make urine
: an animal kidney used as food
KIDNEY Defined for Kids
Definition of kidney for Students
: either of a pair of organs near the backbone that give off waste from the body in the form of urine and in humans are bean-shaped
Medical Definition of kidney
1: one of a pair of vertebrate organs situated in the body cavity near the spinal column that excrete waste products of metabolism, in humans are bean-shaped organs about 41⁄2 inches (111⁄2 centimeters) long lying behind the peritoneum in a mass of fatty tissue, and consist chiefly of nephrons by which urine is secreted, collected, and discharged into the renal pelvis whence it is conveyed by the ureter to the bladder—compare mesonephros, metanephros, pronephros
2: any of various excretory organs of invertebrate animals
Learn More about kidney
Seen and Heard
What made you want to look up kidney? Please tell us where you read or heard it (including the quote, if possible).