A part of the ocean near the equator, abounding in calms, squalls, and light, baffling winds, which sometimes prevent all progress for weeks; -- so called by sailors.
area along the meteorological equator where surface sea winds are weak and variable and rainfall is heavy.
A belt of calm encircling the Earth slightly north of the Equator between the two belts of Trade Winds. It is associated with clouds, high humidity and light, variable winds. Sailing ships can be trapped for days or weeks in the Doldrums when the winds disappear.