true

true

1. Music exactly in tune

2. (of a compass bearing) according to the earth's geographical rather than magnetic poles

3. Biology conforming to the typical structure of a designated type

4. Physics not apparent or relative; taking into account all complicating factors

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

true

[trü]

(geodesy)

Related to true north.

(science and technology)

Actual, as constrasted with fictitious, such as true sun.

Related to a fixed point, either on the earth or in space, in contrast with relative, which is related to a moving point.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.