pubic bone n.
The forward portion of either of the hipbones, at the juncture forming the front arch of the pelvis. Also called pubis.
This is the pubic bone of the pelvic girdle which supports the hind legs.
It is placed immediately in front, on the pubic bone, the Uterus lying nearly on the top of it.
In Fig. 1, the back of the head is nearly under the pubic bone, while the forehead is just passing the external opening below.