[awr-nis] /ˈɔr nɪs/
noun, plural ornithes
[awr-nahy-theez] /ɔrˈnaɪ θiz/ (Show IPA)
a less common word for avifauna
1. variant of before a vowel: ornithoid. 1. . 2. . 1. ornithologic 2. ornithological 3. ornithology
[awr-nuh-theen] /ˈɔr nəˌθin/ noun, Biochemistry. 1. an amino acid, H 2 N(CH 2) 3 CH(NH 2)COOH, obtained by the hydrolysis of arginine and occurring as an intermediate compound in the urea cycle of mammals. /ˈɔːnɪˌθiːn/ noun 1. an amino acid produced from arginine by hydrolysis: involved in the formation of urea in the liver; diaminopentanoic […]
[awr-nith-ik] /ɔrˈnɪθ ɪk/ adjective 1. of or relating to birds. /ɔːˈnɪθɪk/ adjective 1. of or relating to birds or a bird fauna
ornithinuria or·ni·thi·nu·ri·a (ôr’nə-thĭ-nur’ē-ə, -nyur’-) n. Excessive amounts of ornithine in the urine.