1 Harsh and strict treatment in the military for cadets is an example of rigor. 2  Freezing weather and ice are examples of the rigors of winter. 3  Difficult and challenging academic courses are an example of academic rigor.  harshness or severity; specif.,
The suffix-lysis means to breakdown; separation; destruction; or loosening.
Lysis. Definition. noun. (cytology). The disintegration or rupture of the cell membrane, resulting in the release of cell contents or the subsequent death of the cell. (medicine). The gradual recovery or recuperation from an acute disease.