A newly developing human is typically referred to as an embryo until the ninth week after conception, when it is then referred to as a fetus. In other multicellular organisms, the word …

The meaning of EMBRYO is an animal in the early stages of growth and differentiation that are characterized by cleavage, the laying down of fundamental tissues, and the formation of …

An embryo is the early developmental stage of an animal while it is in the egg or within the uterus of the mother. In humans the term is applied to the unborn child until the end of the seventh …

Aug 26, 2021 · When egg and sperm meet, a zygote is formed and quickly begins dividing to become an embryo. As pregnancy progresses, the embryo becomes a fetus. The fetus …

embryo An organism in its earliest stages of development, especially before it has reached a stage at which it can be distinguished from other species. The human embryo is so called up …

Aug 13, 2023 · An embryo is a newly fertilized egg (zygote) up till the eighth week of development as it transforms through the morula, blastula, gastrula, and organogenesis stages.

Jul 21, 2025 · In humans, the developing organism is referred to as an embryo from the first cell division until about the eighth week after fertilization. The journey of an embryo starts with …

May 12, 2025 · Human embryonic and fetal development is a fascinating journey that transforms a single cell into a fully formed fetus. This diagram illustrates the key stages from fertilization to …

Oct 14, 2025 · An embryo is the early stage of development and lasts from week five to week 10 of pregnancy. A fetus is the later stage of development and lasts from the end of week 10 until …

May 21, 2024 · What is an Embryo? An embryo is an organism in the early stages of development which cannot survive on its own. The precise definition of it varies; in humans, for example, a …