reaction time

[/riˈækʃən taɪm/]
nounpl: reaction times
tempo de reação
1. The interval of time between the presentation of a stimulus and the onset of a response
The athlete's reaction time was crucial in winning the race.
O tempo de reação do atleta foi crucial para vencer a corrida.
2. The time it takes for a person or system to respond to a stimulus or external event
A driver's reaction time is essential for road safety.
O tempo de reação de um motorista é essencial para a segurança nas estradas.
3. In chemistry, the duration from the initiation of a chemical reaction until a measurable change occurs
The reaction time of this chemical compound is faster than expected.
O tempo de reação deste composto químico é mais rápido que o esperado.
Reaction time is a significant concept in Brazilian sports culture, particularly in soccer, volleyball, and martial arts. In the USA, it's heavily emphasized in driving safety education and competitive sports. The term is also critical in scientific research and occupational safety standards in both countries.
Synonyms / Sinônimos
response timelatencylag timereflex time

Regional Variations

General Brazilian
tempo de reação
Standard term used in sports, psychology, and safety contexts
Rio de Janeiro
tempo de reação
Same as general Brazilian Portuguese
São Paulo
tempo de reação
Commonly used in technical and scientific contexts
Portugal
tempo de reacção
Uses 'reacção' spelling following European Portuguese conventions

Related Words

stimulusreflexneural pathwaymotor responsecognitive processing

Related Idioms & Phrases

quick on the draw
sharp reflexes
split-second timing
Look up more words on Fala2Me
The free English-Portuguese dictionary with real Brazilian accents, NYC slang, conjugator and more
Open Fala2Me →