A current below the surface of water, sometimes flowing in a contrary direction to that on the surface.
Hence, figuratively, a tendency of feeling, opinion, or the like, in a direction contrary to what is publicly shown; an unseen influence or tendency; as, a strong undercurrent of sentiment in favor of a prisoner.
Running beneath the surface; hidden.
In oceanography, a water current flowing beneath a surface current at a different speed or in a different direction.
current flowing beneath a surface current, usually in the opposite direction.
a current below the surface of a fluid
the flow of water beneath the surface which can be opposite the surface flow on stillwaters.
A current under the surface of the main stream, sometimes flowing in a contrary direction.
A current, as of air or water, below another current or beneath the surface.
current flowing underneath another current at a different speed or in the opposite direction.