(redirected from can't)
Also found in: Dictionary, Thesaurus, Medical, Financial, Idioms, Wikipedia.


1. a shallow cylindrical metal container of varying size used for storing and handling film
2. in the can (of a film, piece of music, etc.) having been recorded, processed, edited, etc.
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005


(design engineering)
A cylindrical metal vessel or container, usually with an open top or a removable cover.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


A closely woven cloth of cotton, hemp, or flax; sometimes adhered to a wall or deck to serve as a substrate for paint; used to cover roof decks that are walking surfaces or sun decks.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.


This article is provided by FOLDOC - Free Online Dictionary of Computing (

CAN bus

(Controller Area Network bus) A rugged, digital serial bus designed for industrial environments. Introduced by Bosch in the mid-1980s for in-vehicle communications, it is used in myriad applications including factory automation, building automation, aircraft and aerospace as well as in cars, trucks and buses. CAN bus replaced bulky wiring harnesses with a two-wire differential cable (the two wires carry inverted voltages to decrease interference).

CAN provides services at layers 1 and 2 of the OSI model and uses a broadcast method for placing frames on the wire somewhat similar to Ethernet. Bus distance is based on speed, ranging from a maximum of 40 meters at 1 Mbps to a maximum of six kilometers at 10 Kbps. At speeds up to 125 Kbps, CAN provides fault tolerance. If one of the two wires is cut or shorted, the other keeps transmitting.

In a vehicle, both low- and high-speed CAN buses are used. For example, window, lighting and seat control only need low speeds, while engine, cruise control and antilock brakes require high speeds. Two or three CAN buses may be used in a vehicle; for example, a high-speed bus may be dedicated only for safety (air bags, seat belt tensioners, etc.).

CAN FD (CAN with Flexible Data-Rate)
Introduced in 2012 by Bosch, CAN FD increases the frame size from eight to 64 bytes. CAN FD is no longer limited to the original 1 Mbps data rate and can be whatever the physical layer can handle.

CANopen and CiA
Introduced in 1995, CANopen is a high-level application layer protocol that provides services for processes, data and network management. The international organization that governs the CANopen protocol is CAN in Automation (CiA). For more information, visit See automotive systems and automotive Ethernet.


Slang for headphones or capacitors. See headphones and capacitor.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in classic literature ?
"Well, we can't resk being as long as we ought to, because it mayn't take very long for Uncle Silas to hear from down there by New Orleans.
"I can't have a carriage without its costing ever so much.
I can't dance anymore, but as soon as supper is over, watch for Hannah and tell me the minute she comes."
"Oh, I can't do it," she said, in a voice almost of agony; "Stephen, don't ask me--don't urge me.
I can't set out on a fresh life, and forget that; I must go back to it, and cling to it, else I shall feel as if there were nothing firm beneath my feet."
"Go, then,--leave me; don't torture me any longer,--I can't bear it."
The only good news you read about the economy now is that it probably can't get any worse.
'Can't view any pictures on Messenger and I can't attach or see any pics in anything on my news feed, comments and posts,' one person complained on DownDetector, discussing Facebook.
When Sophie can't solve a math puzzle, she feels upset and inadequate.
When coffee is such a part of your soul that you can't get through the day without it, Kopiko 78C is the perfect drink to help keep you productive and charged-up any time you need a quick boost.
The EU can't be for preventing war in Europe because NATO does that.
But if you can't afford its whopping PS895 price tag we've found this cute one, right, for only PS8 from George at Asda CHARLOTTE Olympia is well known designs and this perspex bag, left, is you can't afford its whopping PS895 price right, for only PS8 from George at Asda CHARLOTTE Olympia is well known designs and this perspex bag, left, is you can't afford its whopping PS895 price right, for only PS8 from George at Asda you can't afford its right, for only PS8 from