Search the dictionary A Chinese word or character, or English Draw a character Search 6 entries. yǒulǐshù 有理数 rational number (i.e. fraction of two integers, math.) yǒulǐshù 有理數 rational number (i.e. fraction of two integers, math.) yǒulǐshùyù 有理数域 field of rational numbers (math.), usually denoted by Q yǒulǐshùjí 有理数集 set of rational numbers (math.) yǒulǐshùyù 有理數域 field of rational numbers (math.), usually denoted by Q yǒulǐshùjí 有理數集 set of rational numbers (math.)