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1753, with reference to cellular tissue, from Modern Latin cellularis "of little cells," from cellula "little cell," diminutive of cella (see cell). Of mobile phone systems (in which the area served is divided into "cells" of a few square miles served by transmitters), 1977. Related: Cellularity.
cellular cel·lu·lar (sěl'yə-lər)
Of, relating to, or resembling a cell.
Consisting of, composed of, or containing a cell or cells.