[kon-kav-i-tee] /kɒnˈkæv ɪ ti/
noun, plural concavities for 2.
the state or quality of being .
a surface or thing; cavity.
noun (pl) -ties
the state or quality of being concave
a concave surface or thing; cavity
c.1400, from Old French concavité “hollow, concavity” (14c.) or directly from Latin concavitatem (nominative concavitas), from Latin concavus “hollow” (see concave).
concavity con·cav·i·ty (kŏn-kāv’ĭ-tē)
A hollow or depression that is curved like the inner surface of a sphere.
[kon-key-voh-kon-keyv] /kɒnˈkeɪ voʊ kɒnˈkeɪv/ adjective 1. concave on both sides. /kɒnˌkeɪvəʊkɒnˈkeɪv/ adjective 1. (esp of a lens) having both sides concave; biconcave concavo-concave con·ca·vo-con·cave (kŏn-kā’vō-kŏn-kāv’) adj. Of or being biconcave.
- Concavo-concave lens
concavo-concave lens n. See biconcave lens.
[kon-key-voh-kon-veks] /kɒnˈkeɪ voʊ kɒnˈvɛks/ adjective 1. Also, convexo-concave. 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. adjective 1. having one side concave and the other side convex 2. (of a lens) […]
- Concavo-convex lens
concavo-convex lens n. A lens that is concave on one surface and convex on the opposite surface.
[kuh n-seel] /kənˈsil/ verb (used with object) 1. to hide; withdraw or remove from observation; cover or keep from sight: He concealed the gun under his coat. 2. to keep secret; to prevent or avoid disclosing or divulging: to conceal one’s identity by using a false name. /kənˈsiːl/ verb (transitive) 1. to keep from discovery; […]