advance (redirected from onward motion)

advance

1. Commerce

a. the supplying of commodities or funds before receipt of an agreed consideration

b. the commodities or funds supplied in this manner

c. (as modifier): an advance supply

2. a money payment made before it is legally due

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advance [əd′vans]

(civil engineering)

In railway engineering, a length of track that extends beyond the signal that controls it.

(geology)

A continuing movement of a shoreline toward the sea.

A net movement over a specified period of time of a shoreline toward the sea.

(hydrology)

The forward movement of a glacier.

(mechanical engineering)

To effect the earlier occurrence of an event, for example, spark advance or injection advance.

(navigation)

In making a turn, the distance a vessel moves in its initial direction from the point where the rudder is started over until the heading has changed 90°.

The distance a vessel moves in the initial direction for heading changes of less than 90°.