Noah Webster
Seminal
SEM'INAL, adjective [Latin seminalis, from semen, seed; from the root of sow.]
1. Pertaining to seed, or to the elements of production.
2. Contained in a seed; radical; rudimental; original; as seminal principles of generation; seminal virtue.
Seminal leaf, the same as seed-leaf.
SEM'INAL, noun seminal state.