A word beginning with R for sleep is rest.
1 - r/7 Another way to write the same thing is 7/7-r/7 which is (7-r)/7
mor
recover
or
Iroquois
r2 or r to the power 2 or just r squared.
Another word for copy that starts with an "R" could be reproduce. Hope that helps.
Ravishing is an "R" word that means lovely.
Steve R
Their is not another name for HIV that starts with an R. That said, HIV is a type of retrovirus. That is probably the word you are looking for.
The R-R interval is a medical term used to describe the peak of one QRS to another. This is used to asses the ventricular rate.
A word beginning with R for sleep is rest.
rag
Ribbon.
reservation
Result, or resulted