9-Letter Words Containing: H,I,R

• breed animals or plants using parents of different races and varieties

• A prayerbook for a Jewish holiday.

• surgical procedure in which spinal nerve roots are cut; done (anterior roots) to relieve intractable pain or (posterior roots) to stop severe muscle spasms

• any of a class of organic compounds sharing a common functional group characterized by a nitrogen to nitrogen covalent bond with 4 substituents with at least one of them being an acyl group.