EMBRYONIC

embryonic, embryotic

(adjective) in an early stage of development; “the embryonic government staffed by survivors of the massacre”; “an embryonic nation, not yet self-governing”

embryonic, embryologic, embryonal

(adjective) of an organism prior to birth or hatching; “in the embryonic stage”; “embryologic development”

Source: WordNet® 3.1

Adjective

embryonic (comparative more embryonic, superlative most embryonic)

(embryology) Of or relating to an embryo.

(figuratively) Of a project, etc: very new and still evolving; yet to reach its full potential.

Synonyms

• embryonal (much less common)

Source: Wiktionary

Em`bry*on"ic, a. (Biol.)

Definition: Of or pertaining to an embryo; embryonal; rudimentary. Embryonic sac or vesicle (Bot.), the vesicle within which the embryo is developed in the ovule; -- sometimes called also amnios sac, and embryonal sac.

Source: Webster’s Unabridged Dictionary 1913 Edition