Glossary with audio assistance

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a faster than normal heart rate


Tactile hair

long thick hairs such as the whiskers in cats and dogs, that are highly sensitive to pressure and touch and which provide sensory information about the environment


the area of the anode which electrons bombard during an exposure

Temporary teeth

see deciduous teeth


an agent that is damaging to a developing embryo or fetus

Thermionic emission

the process where electrons are released from the filament when it is heated

Thermoluminescent dosemeter (TLD)

a device for monitoring exposure to X-rays


Tidal air

the air that passes in and out of the lungs in one breath

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