(travel) A flight in which the passenger makes intermediate stops but does not change aircraft. / (ornithology) A flight where the bird's altitude does not change significantly with each wingbeat.

(physics) An electric current that always flows in the same direction but may differ in intensity over time. / (physics) A constant electric current.

(graph theory) An edge of a directed graph.

(graph theory) A graph in which the edges are ordered pairs, so that, if the edge (a, b) is in the graph, the edge (b, a) need not be in the graph and is distinct from (a, b) if it is.

Of a motion picture, originally released in a home video format (historically VHS) without being released to cinemas or broadcast on television.

The ability of a vehicle to maintain its course, or remain under normal steering control, while subjected to directionally disturbing influences such as cross-winds, braking on irregular surfaces or turning.

(film) A film punctuation in which there is a direct instantaneous transition between one scene and the next.

A measure put directly to a vote after being submitted by a petition.

plural of direct examination

(law) In a legal trial, the questioning of a witness by the attorney for the party who has called the witness to testify.