extender

[ik-sten-der]

ex·tend·er

[ik-sten-der]
noun
1.
a substance added to another substance, as to paint or food, to increase its volume or bulk: to add cereal and soy protein to hamburger as extenders.
2.
Photography. See under converter (def. 8).

Origin:
1605–15; extend + -er1

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Extender is always a great word to know.
So is short subject. Does it mean:
a short film, as a documentary or travelogue, shown as part of a program with a feature-length film
the steps necessary to prepare a film for production, as casting, choosing locations, and designing sets and costumes
Dictionary.com Unabridged

con·vert·er

[kuhn-vur-ter]
noun
1.
a person or thing that converts.
2.
Electricity. a device that converts alternating current to direct current or vice versa. Compare inverter, synchronous converter.
3.
Metallurgy. a chamber or vessel through which an oxidizing blast of air is forced, as in making steel by the Bessemer process.
4.
Television. decoder (def. 5).
5.
Radio and Television. an auxiliary device that permits a receiver to pick up frequencies or channels for which it was not originally designed.
EXPAND
6.
Physics. a reactor for converting one kind of fuel into another kind.
7.
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.
8.
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).
COLLAPSE
Also, con·ver·tor.


Origin:
1525–35; convert + -er1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source Link To extender
Collins
World English Dictionary
extender (ɪkˈstɛndə)
 
n
1.  a person or thing that extends
2.  a substance, such as French chalk or china clay, added to paints to give them body and decrease their rate of settlement
3.  a substance added to glues and resins to dilute them or to modify their viscosity
4.  a substance added to elastomers to assist the plasticizer
5.  printing the part of certain lower-case letters that extends either above (the ascender) or below (the descender) the body of the letter

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