To become spherical.
To make spherical.
The planet Earth.
A circular military formation used in Ancient Rome, corresponding to the modern infantry square.
A spherical model of Earth or other planet.
A land snail of the genus Mesodon
A light bulb.
A woman's breast.
Any spherical (or nearly spherical) object.
Said of an aircraft: to make a series of plunges when taking off or landing; or of a watercraft: to successively plunge up and down in the water.
Said of an air-breathing aquatic animal such as a porpoise or penguin: To repeatedly jump out of the water to take a breath and dive back in a continuous motion.
Any small dolphin.
A small cetacean of the family Phocoenidae, related to dolphins and whales.