| apparatus | | |
| n. (artifact) | 1. apparatus, setup | equipment designed to serve a specific function. |
| ~ aerator | an apparatus for exposing something to the air (as sewage). |
| ~ burner | an apparatus for burning fuel (or refuse).; "a diesel engine is an oil burner" |
| ~ cascade liquefier | an apparatus used to liquefy air or oxygen etc.. |
| ~ centrifuge, separator, extractor | an apparatus that uses centrifugal force to separate particles from a suspension. |
| ~ chemical reactor | an apparatus for holding substances that are undergoing a chemical reaction. |
| ~ condenser | an apparatus that converts vapor into liquid. |
| ~ copier, duplicator | apparatus that makes copies of typed, written or drawn material. |
| ~ electrograph | an apparatus for the electrical transmission of pictures. |
| ~ equipment | an instrumentality needed for an undertaking or to perform a service. |
| ~ generator | an apparatus that produces a vapor or gas. |
| ~ heat pump | apparatus that extracts heat from a liquid that is at a higher temperature than its surroundings; can be used to transfer heat from a reservoir outside in order to heat a building. |
| ~ heliograph | an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on. |
| ~ brooder, incubator | apparatus consisting of a box designed to maintain a constant temperature by the use of a thermostat; used for chicks or premature infants. |
| ~ instillator | medical apparatus that puts a liquid into a cavity drop by drop. |
| ~ kipp's apparatus | a laboratory apparatus for producing a gas (usually hydrogen sulfide) by the action of a liquid on a solid without heating. |
| ~ lighting | apparatus for supplying artificial light effects for the stage or a film. |
| ~ nuclear reactor, reactor | (physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements. |
| ~ optical bench | apparatus for observation and measurement of optical phenomena. |
| ~ pendulum | an apparatus consisting of an object mounted so that it swings freely under the influence of gravity. |
| ~ purifier | an apparatus for removing impurities. |
| ~ reformer | an apparatus that reforms the molecular structure of hydrocarbons to produce richer fuel.; "a catalytic reformer" |
| ~ semaphore | an apparatus for visual signaling with lights or mechanically moving arms. |
| ~ sequenator, sequencer | (chemistry) an apparatus that can determine the sequence of monomers in a polymer. |
| ~ soda fountain | an apparatus for dispensing soda water. |
| ~ still | an apparatus used for the distillation of liquids; consists of a vessel in which a substance is vaporized by heat and a condenser where the vapor is condensed. |
| ~ submersible | an apparatus intended for use under water. |
| ~ telegraph, telegraphy | apparatus used to communicate at a distance over a wire (usually in Morse code). |
| ~ titrator | an apparatus for performing a titration. |
| ~ x-ray machine | an apparatus that provides a source of X rays. |
| n. (body) | 2. apparatus | (anatomy) a group of body parts that work together to perform a given function.; "the breathing apparatus" |
| ~ body part | any part of an organism such as an organ or extremity. |
| ~ auditory apparatus | all of the components of the organ of hearing including the outer and middle and inner ears. |
| ~ anatomy, general anatomy | the branch of morphology that deals with the structure of animals. |
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