the act of spreading outward from a central source | the most important or interesting work or activity in a specific area or field |
(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong |
a radial arrangement of nerve fibers connecting different parts of the brain | something done (usually as opposed to something said) |
the spread of a group of organisms into new habitats | a military engagement |
energy that is radiated or transmitted in the form of rays or waves or particles | an act by a government body or supranational organization |
the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay | the operating part that transmits power to a mechanism |
syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours | In firearms terminology, the mechanism that handles the ammunition (loads, locks, fires, and extracts the cartridges). |
| the trait of being active and energetic and forceful |
| the series of events that form a plot |
| a process existing in or produced by nature (rather than by the intent of human beings) |
| the state of being active |