A study of the figure will show that the centrifugal force round the axis RR will act on the equatorial protuberance of the rotating earth so as to make it tend in the direction of the arrows.
After the entrance of the pollengrain the pollen-chamber becomes roofed over by a blunt protuberance of nucellar tissue.
The base has a square protuberance, which fits into the tap wrench.
The flipper is short, broad, and truncated, and the dorsal fin a mere low protuberance.
The second thoracic ring is humped, and there is a spine-like horn or protuberance at the tail.
The skull oval from ear to ear, showing plenty of brain room, and with a well-defined occipital protuberance.
This wedge shaped flat topped protuberance is 600 meters up a cliff face overlooking a fjord.