Torus
A convex moulding on a cornice is called a TORUS if it is semi-circular or an OVOLO if its not. When combined with a concave moulding it is called a CYMA where the concave is at the top or a OGEE where the convex is at the top.
ovolo
cyma
Convex mirror form only one image(virtual) because it diverges light rays(beam).
There are convex mirrors found in the form of side view mirrors in all the vehicles because convex mirror has a property that the image formed is smaller than the actual size of the object and hence it allows to see a large area in a small mirror which is useful during driving
ovolo (from the Italian for egg uovo
A convex moulding on a cornice is called a TORUS if it is semi-circular or an OVOLO if its not. When combined with a concave moulding it is called a CYMA where the concave is at the top or a OGEE where the convex is at the top.
ovolo
Cyma
A convex curve in the shaft of a column
cavetto
cyma
The Lumbar region of the spine.
Lordosis an anteriorly convex curvature of the vertebral column; the normal lordoses of the cervical and lumbar regions are secondary curvatures of the vertebral column, acquired postnatally
Meniscus -- The concave or convex surface of a column of liquid in a hydrometer.
a polygon is convex
A non convex is a concave and a convex is differently shaped