TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

LETHAL DOSE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 - external organization data 2011-04-12

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Radiological Physics (Theory and Application)
  • Radiation Protection
  • Compartment - Canadian Nuclear Safety Commission
DEF

The radiation dose that would result in death.

CONT

It was known ... that the harmful effects of plutonium increased over time, and investigators justified the injection of potentially lethal doses into people by assuming the subject would die quickly from other causes.

OBS

This dose is approximately 5 Sv delivered to the whole body within a short period of time.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Physique radiologique et applications
  • Radioprotection
  • Tiroir - Commission canadienne de sûreté nucléaire
DEF

Dose de rayonnement mortelle.

OBS

Cette dose est d'environ 5 Sv absorbés par le corps entier en une courte période de temps.

Spanish

Campo(s) temático(s)
  • Medición y análisis (Ciencias)
  • Física radiológica (Teoría y aplicación)
  • Protección contra la radiación
  • Compartimiento - Comisión Canadiense de Seguridad Nuclear
DEF

[Dosis] que provoca la muerte.

CONT

En general se expresa el peligro de muerte recurriendo a la dosis letal del 50%, que es la que provoca la muerte de la mitad de los organismos irradiados dentro de un plazo determinado.

Save record 1

Record 2 2002-01-07

English

Subject field(s)
  • Environmental Studies and Analyses
  • Toxicology
  • Posology
DEF

The amount of an agent which will cause death.

CONT

A dose that results in the death of the organism is described as lethal (LD). A dose that results in an adverse toxic health effect other than death is often described as toxic (TD).

OBS

A subscript is often put beside lethal (LD) or toxic (TD) dose levels on dose-response curves, to show what percentage of the organisms experienced a toxic or lethal effect at specific dose levels. For example, a TD20 is a dose level where 20% of the test organisms would have experienced adverse toxic effect(s) and the LD50 is a dose level where 50% of the test organisms would have died (Williams and Burson, et al. 1985).

French

Domaine(s)
  • Études et analyses environnementales
  • Toxicologie
  • Posologie
CONT

Les lettres DL signifient dose létale. [Par exemple, la] DL50 est la quantité d'une substance qui, administrée d'un seul coup, entraîne la mort de la moitié (50 %) des animaux soumis au test. La DL50 peut être établie pour différentes voies d'exposition, dont les plus courantes sont la voie cutanée (par la peau) et la voie orale (par la bouche). La DL50 est une des façons qui existent pour déterminer le risque d'intoxication à court terme que présente une substance.

Spanish

Campo(s) temático(s)
  • Estudios y análisis del medio ambiente
  • Toxicología
  • Posología
DEF

[...] la cantidad de agente tóxico que causa la muerte cuando se la inyecta en el cuerpo.

OBS

Se expresa DL.

Save record 2

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