cyema

cyema

(sī-ē'mă), The embryonic cells of the conceptus.

cy·e·ma

(sī-ē'mă, cī-ēmă) The embryonic or fetal part of the conceptus, excluding the placenta, umbilical cord, and extraembryonic membranes. [G. kyēma, embryo, fetus, fr. kyeō, to be pregnant]