Crown-Rump Length
Synonyms
Crown Rump Length
Crown-Rump Lengths
Length, Crown-Rump
Lengths, Crown-Rump
In utero measurement corresponding to the sitting height (crown to rump) of the fetus. Length is considered a more accurate criterion of the age of the fetus than is the weight. The average crown-rump length of the fetus at term is 36 cm. (From Williams Obstetrics, 18th ed, p91)