PowerTalk Language Consultancy - Uma consultoria de idiomas, aulas e traduções. Inglês e Chinês Mandarim

Thursday, March 31, 2011

Word of the Day.

radiation   
Function: noun [noncount]

Meanings:
1 : a type ofdangerous and powerful energy that is produced by radioactive substances and nuclear reactions
Example:
<She was exposed to high levels of radiation.>

2 medical : the use of controlled amounts of radiationfor the treatment of diseases (such as cancer)
Example:
<He goes in for radiation next week.> — called also radiation therapy, radiotherapy

3 a : energy that comes from a source in the form of waves or rays you cannot see
Example:
<ultraviolet radiation>

3 b technical : the process of giving off energy in the form of waves or rays you cannot see
Example:
<the sun's radiation of heat>

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