In human prenatal development, fetal development begins from the ninth week after fertilization (which is the eleventh week of gestational age) and continues until the birth of a newborn.

Dec 19, 2025 · fetus, the unborn young of any vertebrate animal, particularly of a mammal, after it has attained the basic form and structure typical of its kind. A brief treatment of the fetus …

FOETUS definition: 1. a young human being or animal before birth, after the organs have started to develop: 2. a UK…. Learn more.

A foetus is an animal or human being in its later stages of development before it is born. Pregnant women who are heavy drinkers risk damaging the unborn foetus. Collins COBUILD Advanced …

There are three stages of fetal development: germinal, embryonic and fetal. Most people don’t talk about their pregnancy in these terms, but it can be helpful to know. The germinal stage is the …

Definition of foetus noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Oct 14, 2025 · Both embryo and fetus are terms used to describe the stages of a baby’s development during pregnancy. Gestational age or the length of time a person is pregnant is …

6 days ago · During the last 10 weeks in utero the foetus stores very considerable amounts of energy in the form of fat. The foetus gains all its food and oxygen from the mother during …

In humans, the embryo is called a fetus after all major body structures have formed; this stage is reached about sixty days after fertilization.

The meaning of FETUS is an unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind; specifically : a developing human from usually two months after …