pith ray
noun
= medullary ray.
Origin
Mid 19th century.
- polyarchy
- polyargyrite
- polyaromatic
- polyarteritis
- polyarthritic
- polyarthritis
- polyarticular
- polyatomic
- polyautography
- polyaxial
- polybag
- polybase
- polybasic
- polybasicity
- polybasite
- Polybius
- polyblast
- polyblastic
- polyblend
- polybranchiate
- polybrominated
- polybrominated biphenyl
- polybutadiene
- polybutylene
- polycarbonate