A component of a manual telephone switchboard, or of various early data processing equipment, in which circuits are completed with cords on a matrix of connections.

(transitive) to develop in detail or complexity / (intransitive) (sometimes followed by on or upon, and then the object of the preposition) to expand/enlarge in detail

An indigenous people of Maranhão, Brazil. / A Tupian language spoken by the Guajajara people.

vitellarial