Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: ornithic
Next word: ornithischian
Definition of: ornithine
(ôr′nə·thēn, -thin) noun Biochem.
An amino acid, C5H12O2N2, found in the urine of birds; a product of arginine. [<Gk. ornis, ornithos a bird + -INE2]
Comment about this word, ask questions, or add new information about this topic: