ornithic (4) | (adj.) - from the word = of or relating to birds. |
ornithine (5) | (noun) - bird + a chemical substance = C5H12N2O2; a crystalline amino acid which functions in urea production. |
ornithischian (5) | (noun) - bird + ischium = a type of herbivorous dinosaurs, such as the stegosaurus, with a backward pointing pubis. Ornithischian is the adjective form. |
ornithology (3) | (noun) - bird + speak = the zoological science dealing with birds. Ornithological and ornithologic are adjectives, ornithologically is the adverb form and ornithologist is the noun form for a person who studies or does this. |
ornithopod (5) | (noun) - bird + foot = two-legged walking dinosaurs, such as the hadrosaur, with only three functional toes. |
ornithopter (5) | (noun) - bird + wing = an aircraft with flapping wings. |
ornithosis (5) | (noun) - bird + condition or disease = an infectious disease of birds caused by the bacteria Chlamydia psittaci, in birds the symptoms are diarrhea and wasting, when transmitted to humans they usually get pneumonia and a high fever; more commonly called psittacosis. The plural is ornithoses. |