The act of expunging, of wiping out; expungement.
A shortening, or thinning, of the cervix before or during early labour.
Withdrawal in order to make oneself inconspicuous; the making of oneself inconspicuous.
The act of subducting or taking away.
The process of one tectonic plate moving beneath another and sinking into the mantle at a convergent plate boundary.
The action of being pushed or drawn beneath another object.
Arithmetical subtraction.
A surjection between diffeological spaces such that the target is identified as the pushforward of the source.