a part of the cell containing DNA and RNA and responsible for growth and reproduction | a thing constructed; a complex entity constructed of many parts |
any histologically identifiable mass of neural cell bodies in the brain or spinal cord | the manner of construction of something and the arrangement of its parts |
the central structure of the lens that is surrounded by the cortex | a particular complex anatomical part of a living thing and its construction and arrangement |
a small group of indispensable persons or things | the complex composition of knowledge as elements and their combinations |
the positively charged dense center of an atom | the people in a society considered as a system organized by a characteristic pattern of relationships |
(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 | |