暗あん黒こく期きMeaningsNoun1. eclipse period (in viral lifecycle); eclipse phase2. dark ageKanji used暗dark黒black期period (of time)Composed of暗あん黒こくdarknessNoun期きperiod; time; opportunity; chance; occasion; age; term (e.g. in office); session (e.g. of parliament); stage (e.g. of a disease); season (e.g. of a TV series)Noun