rigor (US) noun
or British rigour /ˈrɪgɚ/ plural rigors
or British rigour /ˈrɪgɚ/ plural rigors
Learner's definition of RIGOR
1
rigors [plural] : the difficult and unpleasant conditions or experiences that are associated with something严酷;艰苦 2
[noncount] : the quality or state of being very exact, careful, or strict缜密;严谨;严格