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A bioconcave lense.

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Q: What is Concave on both sides?
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Related questions

What is the meaning of double concave?

Both sides of a lens curve inward.


Are contact lenses concave or convex?

contact lenses are concave because their sides curve inward


Can a convex mirror act as concave mirror?

If this mirror is reflective on both sides, then it can be both concave and convex. Otherwise, the two cannot act like one another.


How many sides does a concave nonagon have?

A nonagon has nine sides: whether it is concave or convex is irrelevant.


Can a polygon be concave?

Yes. All polygons with 4 or more sides can be concave. An arrowhead is an example of a concave quadrilateral. The back of an envelop (where the sides are folded and glued together) is a concave pentagon.


What is a nonconvex polygon?

A nonconvex polygon is a concave polygon. All polygons with 4 or more sides can be concave. An arrowhead is an example of a concave quadrilateral. The back of an envelop (where the sides are folded and glued together) is a concave pentagon.


What is a polygon that bends in?

It is a concave polygon. There are polygons of 4 or more sides that are concave.


Is a trapezoid concave?

No. A trapezoid has two parallel sides. This is not possible in a concave quadrilateral.


How many sides does a concave polygon?

it has 8 sides i think


What does bi-concave mean?

Concave means that there is a dip in the object, like it has caved in. Bi-concave means that it is dipped in on two sides of the object. A good example is a red blood cell. It is a bi-concave disk - it has dips on two sides of it.


How many sides does a concave octagon have?

8


Is a concave sides perpendicular?

A single side cannot be concave and so the question makes no sense.