Meaning

noun any small compartment

noun (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals

noun a device that delivers an electric current as the result of a chemical reaction

originFrom Middle English celle, selle, from Old English cell (attested in inflected forms), from Latin cella (“chamber, small room, compartment”), later reinforced by Old French cel, sele, Old French cele. Ultimately from Proto-Italic *kelnā, from Proto-Indo-European *ḱelneh₂, from Proto-Indo-European *ḱel- (“to cover”). Doublet of cella and hall.

Etymology from Wiktionary, CC BY-SA 3.0