A condition in which the legs curve inwards so that the feet are apart when the knees are touching.Inadequate bone formation leads to bending in weight-bearing bones, giving rise to bow legs and knock knees....
This could be due to joint deformities like bow legs and knock knees, which produce a misalignment and overload on one half of the joint.
Most kids show a moderate tendency toward knock knees between the ages of 4 and 6, as the body goes through a natural alignment shift.
Derivatives
knock-kneed
/ˌnɒkˈniːd /adjective...
Many children will look bowlegged when they start to walk and then knock-kneed between three to seven years.
I'm knock-kneed and slightly pigeon toed so I have trouble with just plain ‘ol walking.
He attempts to prove his versatility and ambition by directing a soppy historical romance featuring not one, but two pairs of knock-kneed intellectuals falling hopelessly in love.