名詞 conceptus:

1. an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
   同義詞：embryo, fertilized egg

con.cep.tus

n.（名詞）
The product of conception at any point between fertilization and birth. It includes the embryo or the fetus as well as the extraembryonic membranes.
胚胎：從受精到出生期間任一階段產(chǎn)物的通稱，它包括了合子或胎兒甚至胚胎膜

來源：
Latin [something conceived] * see concept
拉丁語 [構(gòu)想的產(chǎn)物] *參見 concept