- radioautographies26
- radiobiologically31
- radiochromatogram31
- radioimmunoassays28
- radioisotopically28
- radiotelegraphies26
- rationalistically26
- recapitalizations34
- recentralizations32
- rechromatographed33
- reclassifications28
- recognizabilities36
- reconceptualizing41
- reconcilabilities29
- reconstructionism29
- reconstructionist26
- recontextualizing42
- recrystallization34
- redistributionist23
- refrangiblenesses28
- rehospitalization33
- reindustrializing33
- reinterpretations22
- rememberabilities30
- remilitarizations31
- remorselessnesses22
- renationalization30
- repetitiousnesses22
- reprehensibleness28
- reproachfulnesses31
- reproducibilities29
- resolidifications26
- resourcefulnesses27
- respectablenesses28
- responsiblenesses26
- restrictivenesses25
- retransformations25
- retroperitoneally25
- revascularization36
- revolutionariness25
- rhabdomyosarcomas34
- rhynchocephalians37
- ribonucleoprotein30
- roentgenographies28
- roundheadednesses25
- rudimentarinesses24
- rumbustiousnesses27