(graph theory) A set of edges which touch all the vertices of a graph.

(graph theory) The number of vertices in a minimum vertex cover of a graph, often denoted as 𝜏=𝜏(G).

(graph theory) a set of vertices which touch all the edges of a graph

plural of covalent bond

A bridge with a (usually wooden) house-like structure covering it, to protect it from the elements.

(law) An agreement between parties limiting or restricting the use of land owned by one of the parties. / (law) A noncompete agreement

(idiomatic) From the first page (of a book) all the way to the last page.

A coat suitable for wearing while shooting game, usually with a neutral colour and windproof or waterproof qualities.

(archaic, idiomatic) A long-lasting agreement.

(intransitive) To duck under a surface and cover one's face with one's hands, as a means to protect oneself from flying debris etc.