The Fetus refers to a developing human from usually 1-2 months after conception to its actual birth.
1. The unborn young of a viviparous vertebrate having a basic structural resemblance to the adult animal.
2. In humans, the unborn young from the end of the eighth week after conception to the moment of birth, as distinguished from the earlier embryo.
The unborn young of any vertebrate animal, particularly of a mammal, after it has attained the basic form and structure typical of its kind.
The unborn offspring from the end of the 8th week after conception (when the major structures have formed) until birth. Up until the eighth week, the developing offspring is called an embryo.
An unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind ; specifically : a developing human from usually two months after conception to birth
The Free (Medical) Dictionary
The developing young in the uterus, specifically the unborn offspring in the postembryonic period, in humans from nine weeks after fertilization until birth.
A fetus is a developing mammal or other viviparous vertebrate after the embryonic stage and before birth.
In humans, the fetal stage of prenatal development starts at the beginning of the 11th week in gestational age, which is the 9th week after fertilization.