direction (redirected from palmar direction)

direction

1. the work of a stage or film director

2. the course along which a ship, aircraft, etc., is travelling, expressed as the angle between true or magnetic north and an imaginary line through the main fore-and-aft axis of the vessel

3. Music the process of conducting an orchestra, choir, etc.

4. Music an instruction in the form of a word or symbol heading or occurring in the body of a passage, movement, or piece to indicate tempo, dynamics, mood, etc.

5. Maths

a. (of an angle) being any one of the three angles that a line in space makes with the three positive directions of the coordinate axes. Usually given as α, β, and γ with respect to the x-, y-, and z-axes

b. (of a cosine) being the cosine of any of the direction angles

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direction [də′rek·shən]

(engineering)

The position of one point in space relative to another without reference to the distance between them; may be either three-dimensional or two-dimensional, the horizontal being the usual plane of the latter; usually indicated in terms of its angular distance from a reference direction.

(geology)

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