- a concave surface, part, line, or thing.
- Machinery. a concave piece, as one against which a drum rotates.
- to make concave.
Origin of concave
Related Words for concavedipped, hollow, round, rounded, sinking, sunken, biconcave, cupped, dented, dimpled, excavated, hollowed, incurvate, sagging
Examples from the Web for concave
Historical Examples of concave
In a concave mirror the top and bottom are inverted, but this is no transposition.Timaeus
I am bending them in concave cathode of force over the city.
I ran up the twisted, concave surface of a giant stem of some kind.The Terror from the Depths
Sewell Peaslee Wright
A dentist's mirror is concave; he sees your teeth enlarged in it.Common Science
Carleton W. Washburne
It was a concave lens, like some powerful optical instrument.The Whispering Spheres
Russell Robert Winterbotham
- curving inwards
- physics having one or two surfaces curved or ground in the shape of a section of the interior of a sphere, paraboloid, etca concave lens
- maths (of a polygon) containing an interior angle greater than 180°
- an obsolete word for hollow
- (tr) to make concave
Word Origin for concave
- Curved like the inner surface of a sphere.
- A concave surface, structure, or line.
- Curved inward, like the inside of a circle or sphere.