sea ball

sea ball

[′sē ‚bȯl]
(oceanography)
A spherical mass of somewhat fibrous material of living or fossil vegetation (especially algae), produced mechanically in shallow waters along a seashore by the compacting effect of wave movement.
References in periodicals archive ?
In 1951 guests were given a fake passport as the invitation card for The Moon Over The Sea Ball which was held in Paris.
To get the shark back into the sea Ball attached a rope to its tail and Chaulk started to push.