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MRAD [10 records]

Record 1 2026-04-17

English

Subject field(s)
  • Metrology and Units of Measure
DEF

An SI [International System of Units] derived unit for angular measurement, which is defined as a thousandth of a radian (0.001 radian).

OBS

There are approximately 6283 true milliradians in a full circle.

OBS

milliradian: designation not to be confused with milliradian, abbreviated "mil," which is equal to 1/6400 of a circle.

French

Domaine(s)
  • Unités de mesure et métrologie
OBS

[Le millième vrai correspond] à la millième partie du radian, le radian étant l'angle au centre qui intercepte un arc de cercle dont la longueur est égale au rayon.

OBS

Il y a environ 6283 millièmes vrais dans un cercle complet.

OBS

millième : désignation à ne pas confondre avec le «millième ordinaire», abrégé «mil», qui correspond à 1/6400 d'un cercle.

Spanish

Save record 1

Record 2 2026-04-17

English

Subject field(s)
  • Metrology and Units of Measure
  • Small Arms
  • Field Artillery
DEF

A unit of measure of an angle equivalent to 1/6400 of a circle.

OBS

The "mil" used by the US military and NATO forces is slightly different than the true value of a milliradian, which is equal to 1/6283 of a circle. During World War I, the US adopted what is now the "NATO mil" to replace degrees and minutes for use in artillery sights. They opted to round mils to 6,400 per circle for simplicity at the time. Today, the mil is commonly used to measure adjustment of sights and scopes of firearms.

OBS

angular mil; mil; NATO mil : abbreviations not to be confused with the International System of Units(SI) term "milliradian"(abbreviation "mrad"), which is equal to 1/6283 of a circle.

OBS

mil: designation officially approved by the Small Arms Terminology Working Group.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Armes légères
  • Artillerie de campagne
DEF

Unité de mesure d'angle équivalant à 1/6400 de cercle.

OBS

Le millième angulaire est une unité de mesure d'angle utilisée dans le domaine militaire, surtout pour les instruments d'orientation et de pointage : fusil à précision, réticules de télescope [...]

OBS

millième : désignation à ne pas confondre avec le «millième vrai» du Système international d'unités (SI), abrégé «milli», qui correspond à 1/6283 d'un cercle.

OBS

millième : désignation uniformisée par le Groupe de travail de terminologie des armes légères.

Spanish

Save record 2

Record 3 2001-09-27

English

Subject field(s)
  • Guns (Land Forces)
  • Field Artillery
CONT

[One of the] characteristics of the Bofors Aerotronics integrated fire-control system : max. elevation speed=80 mrad/s.

French

Domaine(s)
  • Canons (Forces terrestres)
  • Artillerie de campagne

Spanish

Save record 3

Record 4 1995-02-23

English

Subject field(s)
  • Radiobiology

French

Domaine(s)
  • Radiobiologie

Spanish

Save record 4

Record 5 - external organization data 1994-12-19

English

Subject field(s)
  • Metrology and Units of Measure
  • Radiological Physics (Theory and Application)
  • Compartment - Canadian Nuclear Safety Commission
OBS

The gray(Gy) replaces the rad(rad).... 1 milligray(mGy)=100 millirad(mrad).

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique radiologique et applications
  • Tiroir - Commission canadienne de sûreté nucléaire
OBS

Le gray (Gy) remplace le rad (rad). [...] 1 milligray (mGy) = 100 millirad (mrad).

Spanish

Save record 5

Record 6 - external organization data 1994-12-19

English

Subject field(s)
  • Metrology and Units of Measure
  • Radiological Physics (Theory and Application)
  • Compartment - Canadian Nuclear Safety Commission
OBS

The rad(rad) is replaced by the gray(Gy).... 1 millirad(mrad)=10 micrograys(µGy).

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique radiologique et applications
  • Tiroir - Commission canadienne de sûreté nucléaire
OBS

Le rad (rad) est remplacé par le gray (Gy). [...] 1 millirad (mrad) = 10 micrograys (µGy).

Spanish

Save record 6

Record 7 1994-10-28

English

Subject field(s)
  • Organizations, Administrative Units and Committees
Key term(s)
  • MRAD

French

Domaine(s)
  • Organismes, unités administratives et comités
Key term(s)
  • DAO

Spanish

Save record 7

Record 8 1987-12-22

English

Subject field(s)
  • Radiography (Medicine)
OBS

A radiation protection survey has been carried out using TLD to assess the radiation exposure to staff during radium insertions for cancer of the cervix... The radiotherapist... had on the average 160 muGy(16 mrad) whole body(chest) dose while the finger tip doses were around 600 muGy(60 mrad) from the insertion of 60 mg radium.(abstract)(Assessment with TLD of radiation exposure to staff during radium insertions in cancer of cervix)(British Journal of Radiology, Nov., 1980, 53(635), pp. 1083-6)

French

Domaine(s)
  • Radiographie (Médecine)

Spanish

Save record 8

Record 9 1984-10-23

English

Subject field(s)
  • Social Security and Employment Insurance

French

Domaine(s)
  • Sécurité sociale et assurance-emploi
OBS

guide du service d'information de gestion (Assurance-chômage) YB 051275

Spanish

Save record 9

Record 10 1983-09-28

English

Subject field(s)
  • Field Artillery
CONT

[One of the] characteristics of the Bofors Aerotronics integrated fire-control system : max. traverse speed=300 mrad/s.

French

Domaine(s)
  • Artillerie de campagne

Spanish

Save record 10

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