concavo-convex

American  

[kon-kay-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.

---

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

---

Etymology

Origin of concavo-convex

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

---

Example Sentences

See Examples For:

concavo-convex

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

The names of the various shapes are as follows:—No. 1, plano-convex; No. 2, plano-concave; No. 3, double convex; No. 4, double concave; No. 5, meniscus; No. 6, concavo-convex.

From How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use by Archibald Williams

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

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

Lean forward, and, holding the hands concavo-convex, draw them up over the limbs severally, then cross on the chest as wrapping a blanket.

From Sign Language Among North American Indians Compared With That Among Other Peoples And Deaf-Mutes First Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1879-1880, Government Printing Office, Washington, 1881, pages 263-552 by Garrick Mallery

Grain is oblong, obtusely trigonous, or concavo-convex, red-brown and rugulose on the ventral side.

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

Random Word

Spin the wheel and learn a new word!

---