transformeriron-core transformertrans·form·er (tr?ns-fôr?m?r)n.1. One that transforms: a transformer of recruits into soldiers.2. A device used to transfer electric energy from one circuit to another, especially a pair of multiply wound, inductively coupled wire coils that effect such a transfer with a change in voltage, current, phase, or other electric characteristic.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.transformer (træns?f??m?) n1. (Electronics) a device that transfers an alternating current from one circuit to one or more other circuits, usually with an increase (step-up transformer) or decrease (step-down transformer) of voltage. The input current is fed to a primary winding, the output being taken from a secondary winding or windings inductively linked to the primary2. a person or thing that transformsCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014trans?form?er (træns?f?r m?r) n. 1. a person or thing that transforms. 2. a device that uses electromagnetic induction to transfer electrical energy from one circuit to another, usu. with a change in voltage and current. [1595?1605] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.transformerThe increase or decrease in voltage is directly related to the number of turns of the wire. In the top transformer, the outgoing voltage is doubled because the secondary coil has twice as many turns as the first. In the bottom transformer, the voltage is halved.trans·form·er (tr?ns-fôr?m?r) A device used to change the voltage of an alternating current in one circuit to a different voltage in a second circuit. Transformers consist of a frame-like iron core that has a wire wound around each end. As a current enters the transformer through one of the coils, the magnetic field it produces causes the other coil to pick up the current. ? If there are more turns on the second coil than on the first coil, the outgoing current will have a higher voltage than the incoming current. This is called a step-up transformer. ? If there are fewer turns on the second coil than on the first, the outgoing current will have a lower voltage. This is called a step-down transformer.The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.transformerA device transferring an alternating current from one circuit to another.Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited