nellutero

Nellutero is not a standard term in English-language medical vocabulary. It is typically encountered as a misspelling or anglicized transcription of the Italian phrase nell'utero, meaning “in the uterus.” In correct Italian, the preposition in combines with the definite article l' before a vowel to form nell', so the proper form before utero is nell'utero, with an apostrophe. The form nellutero (without an apostrophe) is generally considered nonstandard.

In Italian, nell'utero is used to refer to anything occurring within the uterus during pregnancy. In English-language medical writing, the comparable expressions are in utero (Latin) or in the uterus. The term is most often encountered in discussions of prenatal development, fetal imaging, and obstetric care.

Prenatal development occurs inside the uterus from conception through birth, passing through the zygote, embryo, and fetus stages. Medical care during this period includes prenatal screening, maternal health management, and fetal assessment via ultrasound and other techniques. Language usage alternates between Italian terms (nell'utero) and international medical terminology (in utero).