# Oval

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## Oval

the. a cricket ground in south London, in the borough of Lambeth

## Oval

Resembling an egg in shape, ellipsoidal or elliptical; it is duocentric with a long and short axis.

## Oval

a closed convex plane curve. A convex curve is a curve that has no more than two real points in common with any line. The ellipse and the circle are examples of ovals. If an oval has a tangent at every point, then to any direction in the plane there correspond just two tangents parallel to that direction.

Many theorems deal with properties of ovals. We mention two such theorems. (1) On every oval there are at least four points at which the curvature reaches a maximum or minimum. This is the so-called four-vertex theorem. The ellipse has precisely four such points—the ends of the major and minor axes. (2) If we have an oval of constant width, that is, if the distance d between any two parallel tangents to the oval is the same for all directions, then the length of the oval is equal to π d. The circle is the simplest oval of constant width. Another example is the figure obtained (Figure 1) by drawing six arcs of circles with centers at the vertices of an equilateral triangle with side a, where three of the circles have radii c, c arbitrary, and three have radii a + c.

Figure 1

In algebraic geometry the term “oval” is also applied to closed connected components of plane algebraic curves. There, however, the component is not necessarily convex.

## oval

[′ō·vəl]
(mathematics)
A curve shaped like a section of an egg.

## oval

A marble chip which has been tumbled until a smooth oval shape has resulted; used for terrazzo concrete.
References in periodicals archive ?
If the egg shape is the critical criteria to get the concentration of flavors, and you believe using it increases complexity or other wine attributes, it is time to decide what is the best container for the wine you want to make.
Similar findings have been reported in earlier studies indicating difference in egg shape index in different strains (Ali et al.
The palaeontological research of Lopez-Martinez and Vicens resulted in a handy diagram showing the range of egg shapes in birds and their dinosaur ancestors.
Just by adjusting the membrane's properties and the oviduct's pressure, we can derive the entire world of egg shapes.
Place the five sheets of card together with the egg drawing on top and carefully cut round to produce five identical egg shapes.
Shape into small egg shapes, and chill on waxed paper for 2 hours.
For instance, incised cones, egg shapes and diamond-like rhomboids represented quantities of processed foods such as loaves of bread, jars of refined oil and vessels of beer.
STICKY LITTLE FINGERS: Isaac Sayle with Easter egg shapes on his hands
You can shape the mixture into large, medium or small oval egg shapes as desired.
The predominantly earthy palette features glazes that replicate various types of stone and feature asymmetrical pieces in oval and egg shapes.
Drop by level measuring teaspoonfuls onto baking sheet lined with wax paper; shape into egg shapes.

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