The bottom; the buttocks or anus.
Foundation.
The underlying basis or principle for a theoretical or mathematical system.
The hinder parts of the body.
The probability that a hypothesis is true (calculated by Bayes' theorem).
Following in order or in time.
Next to, or facing the main stem or axis.
Relating to or denoting presentation of a fetus in which the rear or caudal end is nearest the cervix and emerges first at birth.