Seminal

a. [Lat. seminalis, from semen, seminis, seed; Fr. séminal, Pr. & Sp. seminal, It. seminale.]

1. Pertaining to seed, or to the elements of production.
2. Contained in seed; holding the relations of seed, source, or first principle; holding the first place in a series of developed results or consequents; germinal; radical; rudimental; original; as, seminal principles of generation; seminal virtue.

The idea of God is, beyond all question or comparison, the one great seminal principle. Hare. Seminal leaf (Bot.), a seed-leaf or cotyledon.