disc.

Related to disc.: herniated disc

disc.

abbr.
discount
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.
References in classic literature ?
One single hypothesis of the observers of Long's Peak could ever be realized, that which foresaw the case of the travelers (if still alive) uniting their efforts with the lunar attraction to attain the surface of the disc.
The highest summit of all towers to a height of 22,606 feet above the surface of the lunar disc. At the same period the examination of the moon was completed.
The three main types of flying discs are a driver disc, a mid-range disc, and a putter disc.
* Don't worry about minor scratches on the clear underside of the disc. The scratch has to be pretty deep to make your data unreadable.
Chains droop down from the top of the pole to help catch the disc.
According to a Philips executive, 95% of all movies can be recorded on this single-layer disc. But for movies with extra-long playing times, Philips/Sony offers a dual-layer MMCD.
Prentice Hall has several services on CD and the next logical step is to publish its tax service on a disc. Matthew Bender & Company and West Publishing Company already have their tax services on CD.
Using MPEG-2 video compression (the same system that is used for digital TV, satellite and cable transmissions), it is quite possible to fit a full-length movie onto one side of a DVD disc. The picture quality is as good as live TV and the DVD-Video disc can carry multi-channel digital sound.
It is based on the IEC 908 specification for standard CDs and allows for a range of densities up to four times standard CD density on a 12-cm disc. The standard is also designed to be "backward-compatible" to allow HDCD players to play standard CDs or any intermediate density between one and four times standard CD density.
In longitudinal recording, the magnetization in the bits on a disc is flipped between lying parallel and anti-parallel to the direction in which the head is moving relative to the disc. Each bit itself is made up of approximately 100 magnetic grains.
The proposed blue lasers use a wavelength of 405 nanometers--compared to 650 nm for the red lasers used in current products--and a tighter 0.85 numerical aperture, allowing for a smaller spot to be recorded on the disc.
When a file is revised and resaved, the table of contents of the disc is changed but the disc appends to the existing data already written on the disc. Both DVD formats provide 4.7GB of storage capacity per disc and have a physical disc size of 120mm (same as a CD), but the media cannot be written in the other's drive.