- See under converter(def 8).
Also called wide-angle converter lens.
- a person or thing that converts.
- Electricity. a device that converts alternating current to direct current or vice versa.Compare inverter, synchronous converter.
- Metallurgy. a chamber or vessel through which an oxidizing blast of air is forced, as in making steel by the Bessemer process.
- Television. decoder(def 5).
- Radio and Television. an auxiliary device that permits a receiver to pick up frequencies or channels for which it was not originally designed.
- Physics. a reactor for converting one kind of fuel into another kind.
- a person who is engaged in converting textile fabrics, especially cotton cloths, from the raw state into the finished product ready for the market by bleaching, dyeing, etc.
- Also called converter lens. Photography. an additional lens attached to a lens in use on a camera to alter focal length, mounted in front of a lens to produce a wide-angle effect (wide-angle converter) or between the lens and the camera body to produce a telephoto effect (teleconverter or extender).
Origin of converter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a person or thing that converts
- a device for converting alternating current to direct current or vice versa
- a device for converting a signal from one frequency to another or from analogue to digital forms
- a vessel in which molten metal is refined, using a blast of air or oxygenSee also Bessemer converter, L-D converter
- short for converter reactor
- computing a device for converting one form of coded information to another, such as an analogue-to-digital converter
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for wide-angle converter
1530s, agent noun from convert (v.). Of machinery, from 1867.
Online Etymology Dictionary, © 2010 Douglas Harper
- An electrical device that changes the form of an electric signal or power source, as by converting alternating current to direct current, or an analog signal to a digital signal. Compare rectifier transformer.
- An electronic device that changes the frequency of a radio or other electromagnetic signal.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.