concavo-convex

American  

[kon-key-voh-kon-veks] / kɒnˈkeɪ voʊ kɒnˈvɛks /

adjective

1. Also concave on one side and convex on the other.

2. Optics. pertaining to or noting a lens in which the concave face has a greater degree of curvature than the convex face.

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concavo-convex British  

adjective

1. having one side concave and the other side convex

2. (of a lens) having a concave face with greater curvature than the convex face Compare convexo-concave

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Etymology

Origin of concavo-convex

1670–80; < Latin concav ( us ) + -o- + convex

Example Sentences

See Examples For:

concavo-convex

High overhead, like a gigantic awning, was the slightly concavo-convex main aeroplane, tilted towards the front at an imperceptible angle, and stretched taut.

From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" by Various

Its root is long and fusiform; the stem is round, jointed and about a yard high; the leaves have fragrant leaflets; and the fruits are brown, oval and concavo-convex.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" by Various

Grain is orbicular to ovate, concavo-convex, red-brown, and transversely rugose.

From A Handbook of Some South Indian Grasses by K. Rangachari

Winglets: small, concavo-convex scales, generally fringed at tip, under the base of the elytra in Dytiscidae.

From Explanation of Terms Used in Entomology by John. B. Smith

I procured therefore another concavo-convex Plate of Glass ground on both sides to the same Sphere with the former Plate.

From Opticks or, a Treatise of the Reflections, Refractions, Inflections, and Colours of Light by Sir Isaac Newton