blood urea nitrogen
noun
The concentration of urea in the blood used as a measure of its nitrogen content; abbreviated BUN.
Origin
Early 20th century.
- independent assortment
- Independent Broadcasting Authority
- independent clause
- independent contractor
- Independent Labour Party
- independently
- independent suspension
- Independent Television Commission
- independent variable
- in depth
- indescribability
- indescribable
- indescribably
- indestructibility
- indestructible
- indestructibly
- in detail
- indeterminable
- indeterminably
- indeterminacy
- indeterminacy principle
- indeterminate
- indeterminately
- indeterminateness
- indeterminate vowel