(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 | a part of the cell containing DNA and RNA and responsible for growth and reproduction |
a device that delivers an electric current as the result of a chemical reaction | any histologically identifiable mass of neural cell bodies in the brain or spinal cord |
a room where a prisoner is kept | the central structure of the lens that is surrounded by the cortex |
small room in which a monk or nun lives | a small group of indispensable persons or things |
any small compartment | the positively charged dense center of an atom |
a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver | (astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail |
a small unit serving as part of or as the nucleus of a larger political movement | |