鳥ちょう学がくMeanings1nounornithologyA formal term for the scientific study of birds; synonymous with 鳥類学 (ちょうるいがく), which is more common.See also: 鳥類学彼かれは鳥ちょう学がくの専せん門もん家かとして知しられている。He is known as an expert in ornithology.
