Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition: Blastoderm. blasâ²to-derm, n. an embryological term applied to the layer or layers of cells arising from the germinal disc, or the portion of a partially segmenting egg which undergoes division. [Gr. blasto-, blastos, a sprout, derma, dermat-, skin.]
â¢ CHILDBEARING (noun). The noun CHILDBEARING has 1 sense: 1. the parturition process in human beings; having a baby; the process of giving birth to a child. Familiarity information: CHILDBEARING used as a noun is very rare.
Key points. 1  Childbearing at advanced maternal age is becoming increasingly common in high income countries. Furthermore, developments in assisted reproductive technologies may contribute to an increasing incidence of pregnancies in women outside of the normal reproductive age.