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Rigor Definition & Meaning - Merriam-Webster
RIGOR | English meaning - Cambridge Dictionary
RIGOR Definition & Meaning | Dictionary.com
RIGOR | definition in the Cambridge English Dictionary
Rigor - Definition, Meaning & Synonyms | Vocabulary.com
RIGOR Synonyms: 137 Similar and Opposite Words - Merriam-Webster
rigor noun - Definition, pictures, pronunciation and usage notes ...
Rigor Definition & Meaning | YourDictionary
Rigor - definition of rigor by The Free Dictionary
Rigor Definition & Meaning | Britannica Dictionary