blastomycete: any of various yeastlike budding fungi of the genus Blastomyces; cause disease in humans and other animals
organism: a living thing that has (or can develop) the ability to act or function independently
spina bifida: a not uncommon congenital defect in which a vertebra is malformed; unless several vertebrae are affected or there is myelomeningocele there are few symptoms; can be diagnosed by amniocentesis