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Pure Appl. Chem.,
Vol. 65, No. 9, pp. 2003-2122, 1993.
CLINICAL
CHEMISTRY DIVISION
COMMISSION ON TOXICOLOGY
Glossary for chemists of terms used in toxicology
(IUPAC Recommmendations 1993)
Alphabetical entries
A | B | C
| D | E | F
| G | H | I
| J | K | L
| M
N | O | P
| Q | R | S
| T | U | V
| W | X | Y
| Z
vacuole: Membrane-bound cavity within a cell.
validity of
a study: Degree to which the inferences drawn from a study,
especially generalizations extending beyond the study sample, are
warranted when account is taken of the study methods, the representativeness
of the study sample, and the nature of the population from which
it is drawn.
Last, 1988
NT external validity,
internal validity.
vasoconstriction:
Decrease of the calibre of the blood vessels leading to a decreased
blood flow.
AN vasodilation.
vasodilation:
Increase in the calibre of the blood vessels, leading to an increased
blood flow.
AN vasoconstriction.
vehicle: Substance(s)
used to formulate active ingredients for administration or use (general
term for solvents, suspending agents, etc.).
Brown, 1988
RT excipient.
venom: Animal toxin generally
used for self-defence or predation and usually delivered by a bite
or sting.
PS toxin.
ventilation:
1. Process of supplying a building or room with fresh air.
2. Process of exchange of air between the ambient atmosphere and
the lungs.
3. In physiology, the amount of air inhaled per day.
4. Oxygenation of blood.
ventricular fibrillation: Irregular heartbeat
characterized by uncoordinated contractions of the ventricle.
vermicide: Substance intended to kill worms.
vermifuge: Substance that causes the expulsion
of intestinal worms.
vertigo: Dizziness; an illusion of movement
as if the external world were revolving around an individual or
as if the individual were revolving in space.
vesicant:
1. adj., Producing blisters on the skin.
2. n., Substance that causes blisters on the skin.
vesicle:
1. Small sac or bladder containing fluid.
2. Blisterlike elevation on the skin containing serous fluid.
volume of distribution: Apparent (hypothetical) volume
of fluid required to contain the total amount of a substance in
the body at the same concentration as that present in the plasma
assuming equilibrium has been attained.
RT plasma.
A | B | C
| D | E | F
| G | H | I
| J | K | L
| M
N | O | P
| Q | R | S
| T | U | V
| W | X | Y
| Z
Page last modified 12 September 2001.
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