Embryo - Wikipedia An embryo ( ˈɛmbrioʊ EM-bree-oh) is the initial stage of development for a multicellular organism In organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization of the female egg cell by the male sperm cell
Embryo vs. Fetus: What’s the Difference? - Healthline In human pregnancies, a baby-to-be isn’t considered a fetus until the 9th week after conception, or week 11 after your last menstrual period (LMP) The embryonic period is all about the formation
Embryo | Description, Characteristics, Development | Britannica embryo, 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 week following conception; from the eighth week the unborn child is called a fetus A brief treatment of embryonic development follows
What is the difference between an embryo, a fetus, and a baby? 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 becomes a neonate or newborn at birth
EMBRYO Definition Meaning - Merriam-Webster 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 primitive organs and organ systems; especially : the developing human individual from the time of implantation to the end of the eighth week after conception
Embryo - Definition and Examples - Biology Online Dictionary In Biology, an embryo is designated as the initial phase of development for a multicellular organism arising after the fusion of a sperm cell (male sex gamete) and an egg cell (female sex gamete released during a woman’s reproductive cycle) during the process of fertilization