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time-sensitive

American  
[tahym-sen-si-tiv] / ˈtaɪmˌsɛn sɪ tɪv /

adjective

  1. (of a product, document, or information) useful or relevant for only a limited amount of time.

    These time-sensitive papers must be signed immediately.

  2. Chemistry. having properties that physically change with the passage of time.

    When stored for prolonged periods, time-sensitive chemicals can become extremely hazardous.


time-sensitive British  

adjective

  1. physically changing as time passes

  2. only relevant or applicable for a short period of time

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of time-sensitive

First recorded in 1925–30; time ( def. ) + sensitive ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Business and Trade Committee had given Royal Mail two weeks to respond to allegations, reported by the BBC, that parcels were being prioritised over letters, resulting in delays to important, time-sensitive mail.

From BBC

But instead he made another brave call, explaining that he would miss the match so he and his wife Ethel, who has endometriosis, could attend time-sensitive fertility treatment.

From BBC

Rather than the old “Buy 10 and get one free” model, companies today often design their programs like a game, using time-sensitive missions, milestone tracking, and peer ranking to encourage repeat visits and higher spending.

From Barron's

This claim "if true, clearly risks customers missing important, time-sensitive information such as medical appointments", Byrne said.

From BBC

The scientists found that a developmental signal known as Notch plays an important but time-sensitive role in immune cell formation.

From Science Daily