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Found 1 items, similar to Vertex of an angle.

**English → English** (gcide)
Definition: Vertex of an angle
Vertex *\Ver"tex\*, n.; pl. Vertexes, L. Vertices. [L. vertex,
-icis, a whirl, top of the head, top, summit, from vertere to
turn. See Verse, and cf. Vortex.]
A turning point; the principal or highest point; top; summit;
crown; apex. Specifically:
[1913 Webster]
(a) (Anat.) The top, or crown, of the head.
[1913 Webster]
(b) (Anat.) The zenith, or the point of the heavens directly
overhead.
[1913 Webster]
(c) (Math.) The point in any figure opposite to, and farthest
from, the base; the terminating point of some particular
line or lines in a figure or a curve; the top, or the
point opposite the base.
[1913 Webster]
Note: The principal vertex of a conic section is, in the
parabola, the vertex of the axis of the curve: in the
ellipse, either extremity of either axis, but usually
the left-hand vertex of the transverse axis; in the
hyperbola, either vertex, but usually the right-hand
vertex of the transverse axis.
[1913 Webster]
Vertex of a curve (Math.), the point in which the axis of
the curve intersects it.
Vertex of an angle (Math.), the point in which the sides of
the angle meet.
Vertex of a solid, or Vertex of a surface of revolution
(Math.), the point in which the axis pierces the surface.
[1913 Webster]

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