洞どう角かくどうかくじ字FuriganaMeanings1nounhollow horn; cavicornZoological term for the hollow, unbranched horns of bovids such as cattle, sheep, and goats. Not used in everyday conversation.ウシやヤギの角つのは洞どう角かくと呼よばれる。The horns of cattle and goats are called hollow horns.
