The Correct spelling is: fetus
Common misspellings of the word fetus are:
How do you spell fetus?. It is not
n., pl. -tusÂ·es.
- The unborn young of a viviparous vertebrate having a basic structural resemblance to the adult animal.
- 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.
[Middle English, from Latin fÄ“tus, offspring.]