high frequency of recombination高频重组：Hfr细胞是指在染色体上有F(生育力)因子的细菌有性或供体(雄性)期，能使其染色体物质转移到没有F因子的受体(雌性)细菌上- palpation
- palpatometry
- palpatopercussion
- palpebra
- palpebrae
- palpebral
- palpebralis
- palpebrate
- palpebration
- palpebritis
- palpitation
- PALS
- Pal's stain
- palsy
- paludal
- paludism
- Paludrine
- pamaquine
- pamatolol sulfate
- Pamine
- p-aminoazobenzene
- p-aminobenzoic acid
- p-aminohippurate
- p-aminosalicylate
- p-aminosalicylic acid,PAS