noun A railfan, particularly an obsessive one. Someone with a special interest in a particular topic, usually obsessive.
noun Someone with a special interest in a particular topic, usually obsessive.
noun A device that foams or froths liquid. A screw-top culinary device that comprises a pressure vessel used to hold a liquid and is charged with a compressed gas, to force the contents out of the nozzle, to create a foam.
noun A screw-top culinary device that comprises a pressure vessel used to hold a liquid and is charged with a compressed gas, to force the contents out of the nozzle, to create a foam.