biconcave

[ bahy-kon-keyv, bahy-kon-keyv ]

adjective

1. concave on both sides, as a lens.

biconcave

/ ˌbaɪkɒnˈkeɪv; ˌbaɪkɒnˈkævɪtɪ; baɪˈkɒnkeɪv /

adjective

1. (of a lens) having concave faces on both sides; concavo-concave

biconcave

/ bī′kŏn-kāv′ /

1. Concave on both sides or surfaces.

Derived Forms

• biconcavity, noun

Other Words From

• bi·con·cav·i·ty [bahy-k, uh, n-, kav, -i-tee], noun

Word History and Origins

Origin of biconcave¹

First recorded in 1825–35; bi- ¹ + concave

Example Sentences

Cartilaginous or partially calcified biconcave vertebrae are always well developed; they constrict the notochord intervertebrally.

From Project Gutenberg

Biconcave cartilaginous vertebrae are developed, and as is the case in most fishes, constrict the notochord vertebrally.

From Project Gutenberg

The vertebral centra are opisthocoelous or biconcave, and there are numerous precaudal vertebrae.

From Project Gutenberg

The vertebrae are biconcave and are very numerous; very few however belong to the tail.

From Project Gutenberg

In Labyrinthodontia the centra of the vertebrae are generally well ossified biconcave discs.

From Project Gutenberg