2. (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
3. A device that delivers an electric current as the result of a chemical reaction Noun
4. A small unit serving as part of or as the nucleus of a larger political movement Noun
5. A hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver Noun