the embryo of a mammal in the later stages of development, when it shows all the main recognizable features of the mature animal, esp a human embryo from the end of the second month of pregnancy until birth
Compare embryo (sense 2)
Word origin
C14: from Latin: offspring, brood
fetus in American English
(ˈfitəs)
nounWord forms: pluralˈfetuses
an unborn offspring of a vertebrate animal that is still in the uterus or egg, esp. in its later stages and specif., in humans, from about the eighth week after conception until birth
see also embryo
Word origin
ME < L fetus, foetus, a bringing forth, progeny; as adj., pregnant, fruitful: see female
Synonyms of 'fetus'
embryo, unborn child, fertilized egg
More Synonyms of fetus
(noun)
Definition
the embryo of a mammal in the later stages of development