dop·ing 
(dōpĭng)
(dōpĭng)n.
The use of a drug, such as a steroid or a blood product, such as erythropoietin, to improve athletic performance.
- nonproliferation
- nonproprietary name
- nonpros
- non prosequitur
- nonreader
- nonrecombinant
- nonrecoverable
- non-REM sleep
- nonrenewable
- nonrepresentational
- nonresidence
- nonresidency
- nonresident
- nonresistance
- nonresistant
- nonrestrictive
- nonreturnable
- nonrigid
- nonscheduled
- nonsectarian
- nonsectarianism
- nonsedating
- nonself
- nonsense
- nonsense verse