lym·pho·blast 
(lĭmfə-blăst′)
(lĭmfə-blăst′)n.
A large, immature lymphocyte that has been activated by an antigen and divides to give rise to mature lymphocytes (B cells and T cells).
lym′pho·blastic adj.
- polyneuritis
- Polynices
- polynomial
- polynuclear aromatic hydrocarbon
- polynucleotide
- polynya
- polyomavirus
- polyp
- polyparium
- polypary
- Polypay
- polypeptide
- polypetalous
- polyphagia
- polyphagian
- polyphagous
- polyphagy
- polyphagy
- polypharmacy
- Polyphemus
- polyphemus moth
- polyphenol
- polyphenolic
- polyphone
- polyphonic