呼号hūhào 1.无线电通讯中使用的各种代号,有时专指广播电台的名称的字母代号。{call sign; call letters; codes used in radio communications} 2.某些组织专用的口号,如中国少年先锋队的呼号是: ‘准备着,为共产主义事业而奋斗!’{motto; catchword (of an organization), e.g. the motto of the Chinese Young Pioneers: ‘Get ready, and we'll struggle for the Communist cause!’}