Entries - D

DIRAC

DImension Relativistic Atom Complex (PS212)

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abbreviations, acronyms, translation

Director-General (pl. Directors-General)

One of the few titles that should be capitalised. Avoid abbreviating to DG.

The hyphen is important. Here's an example from a photo caption that shows why: 

Stephen Hawking (left) with CERN Director General Rolf Heuer. 

The sentence above could be (incorrectly) interpreted to mean that Rolf Heuer is a (military) General, and he is also Director of CERN. 

The hyphen renders the compound adjective unambiguous, Heuer is a Director-General.

The plural of Director-General is Directors-General.

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style

disc or disk?

Use disc with a "c" when you are referring to optical media such as a CD or DVD. All discs are removable, meaning when you eject the disc from your desktop, it physically comes out of your computer. 

Use disk with a "k" for magnetic media, such as a floppy disk, the disk in your computer's hard drive, an external hard drive.

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spelling, style

discrimination

See non-discriminatory language

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style

distance learning (noun); distance-learning (adj.)

translation

Doctor honoris causa

Courier

DOE

Department of Energy (USA)

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abbreviations, acronyms, translation

dosimeter

A device used to measure an absorbed dose of ionising radiation.

Do not confuse with Geiger counter.

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physics

dot-com

use hyphen

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translation

double-beta decay

use hyphen

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Courier

double-check

use hyphen

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grammar

downlink

translation

download

translation

Downloads

On Drupal websites at CERN, whenever you add a file field to a page, call it "Downloads". Keep this consistent across CERN websites.

 

 

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style

downtime

translation

DPO

Departmental Planning Officer

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abbreviations, acronyms, translation

Dr

Note that no full stop is needed after the abbreviation Dr as the last letter is the same as in the full word (Doctor).

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translation

dreamed (past tense)

translation

Drell-Yan

use hyphen

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Courier

DTCs

Drift-tube chambers

Spell out in first use then use acronym for the CERN Courier

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abbreviations, acronyms, Courier

DTO

Departmental Training Officer

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abbreviations, acronyms, translation

duoplasmatron

Another great physics word.

A duoplasmatron is a type of ion source. It operates as follows: a cathode filament emits electrons into a vacuum chamber. A gas, such as argon, is introduced in very small quantities into the chamber, where it becomes charged or ionised through interactions with the free electrons from the cathode, forming a plasma. The plasma is then accelerated through a series of at least two highly charged grids, and becomes an ion beam, moving at fairly high speed from the aperture of the device.

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physics

DUSEL

Deep Underground Science and Engineering Laboratory

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abbreviations, acronyms, translation

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