Any plant that reproduces using spores (rather than seeds), formerly placed in the taxonomic group Cryptogamae, which included ferns, mosses, algae, fungi, lichens and liverworts.

of or relating to the mesoderm

(neurology, pathology) A progressive condition with a combination of severe epilepsy and cerebral palsy. It is characterised by severe physical and mental retardation and partial seizures.

plural of alkanesulfonic acid