周期性鼻衄的英文

• cyclic epistaxis

• 周期性:    periodicity; cyclicity
• 周期性:    periodicity; cyclicity 疟疾周期性发作 periodic attacks of malaria; 危机的周期性 the periodicity of crises; 景气状况周期性地出现。 booms run in cycle.; 周期性经济危机 periodic economic crises; cyclical economic crises; 周期性失业 cyclical unemployment
• 鼻衄:    epistaxis; nasal hemorrhage; rhinorrhadgia; serious nosebleed
• 长期性；非周期性:    secular
• 无周期性，非周期性:    aperiodicity