# direction

(redirected from medial direction)
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Related to medial direction: Medical direction, lateral 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

## 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)

## direction

The place or point toward which the aircraft is moving or facing. Direction may be expressed as true, magnetic, or compass headings or paths. Various terms used to describe direction are azimuth, bearing, course, heading, and track. Azimuth and bearing as used in air navigation are measured from the north in a clock-wise direction from 001° to 360°. Course is the path to be flown by aircraft, and track is the actual path flown over the ground.
References in periodicals archive ?
The authors noted that the participants exhibited better activation of the hamstring when performing movements in the posterior, posterolateral and lateral directions, while movements in the posteromedial and medial directions generally involved less hamstring activation.
Archibald and Summer-Smith (1974) opined that an extension of the hernial ring in a cranial and medial direction facilitated ovario-hysterectomy and the same was necessary in the present case.
The ACL extends in an inferior, anterior, and medial direction from its origin on the inner surface of the posterior, lateral femoral condyle to its insertion on the anterior tibial plateau anterior to the tibial spines between the attachments of the medial and lateral menisci and beneath the transverse ligament.

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