Definition of "oology" [oology]

• The branch of zoology that deals with the study of eggs, especially birds' eggs. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Osgood (1875-1947) gained his reputation as an ornithologist and specialized during the 1890s in oology, but in 1897 he joined the then US Bureau of Economic Ornithology and Mammalogy (later to become the US Biological Survey) and embarked on significant collecting trips to California and Alaska."
• "It was while he was a professor in microbial biology, oology and mollusk genomics at Harvard that he was mysteriously drafted into the military just prior to the Gulf War."
• "Yet, be assured, reader, that all the 'ologies' hitherto christened oology, ichthyology, ornithology, conchology, palaeodontology, &c., do not furnish such mines of labor as does the Greek language when thoroughly searched."