brephic

brephic

adjective Referring to an early stage of development; is not used in the working medical parlance—the preferred term is embryonic.
References in periodicals archive ?
The 'brephic zone' on the Paterula dorsal forms a narrow band just 7 [micro]m wide, ornamented by elliptical pits.
The second halo in Diencobolus and the outer boundary of the 'brephic zone' in Paterula most probably mark a transition from the pelagic to the benthic stage of the life cycle.
Shell surface of the brephic and adult shell finely and densely pitted with subcircular pits slightly exceeding 1 [micro]m across.