Rigor is something strict, severe or demanding. 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.  Difficult and challenging academic courses are an example of academic rigor.
The suffix gram means to draw or write. This is used in telegram.
The gram (British spelling: gramme, abbreviation and symbol: g) is a unit of mass in the SI system (metric system). One gram is equal to one thousandth of the kilogram (kg), which is the current SI (Metric system) base unit of mass. 1 gram (g) = 0.001 kilogram (kg) = 1000 milligrams (mg) = 0.0352739619 ounces (oz) = 0.00220462262 pounds (lb). Report an error on this page.