alertness
pronunciation
How to pronounce alertness in British English:
UK [ə'lɜ:tnəs]
How to pronounce alertness in American English:
US [ə'lɜtnəs]
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- Noun:
- the process of paying close and continuous attention
- a state of readiness to respond
- lively attentiveness
Word Origin
- alertness (n.)
- 1714, from alert + -ness.
Example
- 1. It made some evolutionary sense , that state of alertness .
- 2. They may also contain ' energy enhancing'ingredients such as caffeine or turbine to boost alertness .
- 3. Research has shown that the lavender scent increases alertness .
- 4. By activating the central nervous system , caffeine boosts arousal and alertness .
- 5. Red bull and other energy drinks are high in caffeine as well as the amino acid taurine , which boosts alertness and adrenaline .