president pro tem·po·re 
(tĕmpə-rē)
(tĕmpə-rē)n. pl. presidents pro tempore
The senator who presides over the US Senate in the absence of the vice president.
- blood pressure
- blood pudding
- blood red
- blood-red
- blood relation
- blood relationship
- bloodroot
- blood sausage
- blood serum
- bloodshed
- bloodshot
- blood sport
- bloodstain
- bloodstained
- bloodstone
- bloodstream
- blood stream
- bloodsucker
- bloodsucking
- blood sugar
- blood test
- blood thinner
- bloodthirstily
- bloodthirstiness
- bloodthirsty