Kidney
UK /["/ˈkɪdni/"]/US /["/ˈkɪdni/"]/
Definition
either of the two organs in the body that remove waste products from the blood and produce urine
In simple words: A kidney is a bean-shaped organ in the body that helps clean the blood and make urine.
Examples
- a kidney infection
- steak and kidney pie
Usage notes
Used in medical contexts, discussions about health, or anatomy. Avoid in casual conversation unless the topic is health-related.
Grammar pattern
standalone noun
Memory hint
Think of 'kid' in 'kid-ney' as a young bean — it’s shaped like a kidney bean!
Collocations
- kidney disease
- kidney function
- kidney transplant
- kidney stones
Synonyms
- renal organ
- kidney bean
Antonyms
- heart
- lung
Common mistakes
- Confused with 'liver' – the liver has a different function.
- Mispronounced as 'kidneigh' instead of 'kid-nee'.