The opening of the cervix into the vagina; the external os, os externum.
Origin
Mid 17th century; earliest use found in Alexander Read (1586?–1641). From scientific Latin os uteri from classical Latin os + uteri, genitive of uterusuterus.
Definition of os uteri in US English:
os uteri
nounˌɒs ˈjuːtərʌɪ
The opening of the cervix into the vagina; the external os, os externum.
Origin
Mid 17th century; earliest use found in Alexander Read (1586?–1641). From scientific Latin os uteri from classical Latin os + uteri, genitive of uterus uterus.