Origin: Latin suffix -al
Umbilical has 4 different meanings across 2 categories:
membranous duct connecting the fetus with the placenta
"The ultrasound clearly showed the umbilical cord, which acts as the vital membranous duct connecting the fetus to the placenta."
A cord connecting an astronaut to a spacecraft, or a craft to ground control prior to launch, etc.
"The engineer carefully inspected the umbilical before sealing it off once the rocket reached its final stage of ascent."
Of, or relating to, the navel (umbilicus) or the umbilical cord.
"The doctor gently inspected the infant's umbilical area before cutting the remaining portion of the umbilical cord."