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What is "angle of elevation"

The Collaborative International Dictionary
Angle of elevation

Elevation \El`e*va"tion\, n. [L. elevatio: cf. F.

  1. The act of raising from a lower place, condition, or quality to a higher; -- said of material things, persons, the mind, the voice, etc.; as, the elevation of grain; elevation to a throne; elevation of mind, thoughts, or character.

  2. Condition of being elevated; height; exaltation. ``Degrees of elevation above us.''
    --Locke.

    His style . . . wanted a little elevation.
    --Sir H. Wotton.

  3. That which is raised up or elevated; an elevated place or station; as, an elevation of the ground; a hill.

  4. (Astron.) The distance of a celestial object above the horizon, or the arc of a vertical circle intercepted between it and the horizon; altitude; as, the elevation of the pole, or of a star.

  5. (Dialing) The angle which the style makes with the substylar line.

  6. (Gunnery) The movement of the axis of a piece in a vertical plane; also, the angle of elevation, that is, the angle between the axis of the piece and the line o? sight; -- distinguished from direction.

  7. (Drawing) A geometrical projection of a building, or other object, on a plane perpendicular to the horizon; orthographic projection on a vertical plane; -- called by the ancients the orthography.

    Angle of elevation (Geodesy), the angle which an ascending line makes with a horizontal plane.

    Elevation of the host (R. C. Ch.), that part of the Mass in which the priest raises the host above his head for the people to adore.

Usage examples of "angle of elevation".

Aft lay their late antagonist, a great mass of wreckage trailing alongside, the second lower deck gun from the bow pointing out of its port at an impossible angle of elevation to show she had one gun at least knocked useless.

He brought the angle of elevation slightly down, lowering the nose of the mortar a whisker toward the ground for extra range.

He became aware that the plate was changing its angle of elevation, becoming less horizontal, more vertical.

It may be done, however, with the proper angle of elevation, through the socket of the eye.

He could pick out no imprints and the sparse foliage and his angle of elevation made it clear to him that the way was clear back to Sha'angh'sei.